appendix d slope stability analysis results for soil and ... · ditto with r u = 0.2. ditto with r...

Highthorn Surface Mine – Geotechnical Assessment Report

DABGeot/09059GA/Final

APPENDIX D

Slope Stability Analysis Results for Soil and Overburden Storage Mounds


DABGeot/09059GA/Final D1

STABILITY OF SOIL AND OVERBURDEN STORAGE MOUNDS

D1. Shear Strength Parameters

Most glacial tills are fissured or contain other directional voids that permit pore pressure

dissipation. Preference has therefore been given to the use of effective stress tests in

determining the shear strength of the glacial cover at Highthorn site.

The results of the consolidated undrained triaxial compression tests are summarized in Tables

2 and 3. Both the cohesion (c') and friction angle (ø') values have been derived from linear

envelopes drawn to sets of Mohr circles of failure. Whilst this is in accordance with BS1377

Part 8 (1990), Section 7.6.3, Note 4, some of the intercept values (c') are considered to be too

high. This conclusion is based upon the examination and back analysis of a number of failures

at surface mines in the UK and the application of a curved failure envelope. Further analysis

has therefore been undertaken by plotting the successive stress states of each of the test

specimens in p’, q space where:

p’ = σ’1 + σ’3 and q = σ1 - σ3

2 2

Data from Ferneybeds site and the National Coal Board’s offshore investigations at Highthorn

have been included in the analysis. The soil types have been classified in accordance with the

units defined by Robertson (1991) so that direct comparison can be made with the shear

strengths similarly derived using the combined data from a large number of sites in

Northumberland. The data are plotted in Figures D1 to D3.



Unit 1

Unit 2

Figure D1 p’-q Plots for Units 1 and 2

DAB Geotechnics Ltd. Highthorn Surface Mine Scheme –

Geotechnical Assessment Report Date: 26

th May 2015



Unit 3

Unit 4

Figure D2 p’-q Plots for Units 3 and 4



th May 2015



Remoulded Units 2 and 3

Figure D3 p’-q Plots for Remoulded Units 2 and 3



th May 2015

Linear regression has provided values for the intercept (A') and the slope (tan a’) for the best

fit linear curve. The parameters c' and ø' have then determined using the following equations:

ø' = sin-1 (tan α'), where α' is the slope of the linear curve; and

c' - A'__ where A' is the intercept (set at zero).

cosø'

The results are summarized in Table D1, most of which are distinctly lower than those

derived by Robertson (1991), but nevertheless have been used to model the ground conditions

at Highthorn.



General Description Unit

Highthorn Site Northumberland*

c'

(kNm-2

) ø' ()

c'

(kNm-2

) ø' ()

Soft to firm, orange or reddish brown, mottled grey, silty or

sandy CLAY.

Firm to very stiff, reddish brown, brown or grey brown,

silty sandy to gravelly CLAY with occasional laminations

of silt or sand.

Very stiff, grey silty CLAY.

Soft to stiff, brown thinly to thickly laminated CLAY.

Remoulded mixture of Units 2 and 3

1

2

3

4

-

0

0

0

0

0

31.1

26.7

29.2

23.4

27.4

0

2.6

0

0

31

28.5

32

29.5

* Robertson (1991).

Table D1 Summary of Calculated c' and ø' Values

D2. Topsoil Storage Mounds

The stability of the topsoil mounds has been assessed using Bishop’s Simplified method for

circular failure, the most likely potential failure mechanism, and the computer program,

‘Talren’. Non-circular failure has also been considered. Shear strength parameters for

remoulded topsoil were determined by analysing triaxial test data from Shotton site in

Northumberland and are as follows:

c’ = 0 kN/m2 and ’ = 35º (bulk density 1.84 Mg/m3)

The topsoil mounds will be founded on natural ground (glacial material). Three scenarios

were considered in accessing their stability:

(i) a foundation comprising Unit 1 material (weathered glacial till);

(ii) a foundation consisting of Unit 2 (i.e. in the absence of any weathered glacial till or

Unit 1 material); and

(iii) a mound founded on a soil succession comprising solely Unit 4 (laminated clay).

The cable percussion boreholes clearly show that the third scenario will not occur at

Highthorn site, but laminated clay is present and the analysis results serve to demonstrate the

likely effects on stability. Unit 3 only occurs are depth.

The shear strengths for all the foundation materials were taken from Tables D1 with bulk

densities derived from the data provided in Appendix B. Characterization of the laminated

clay would have benefited from a number of shear box tests, but this omission from the test

programme is not thought to be critical. A mound height of 6m was used in all the

calculations.



The mounds will be constructed with outer slopes of not greater than 1v in 2h (26.6º) and this

profile was used in the analysis. Induced pore pressures will be very low at shallow depth due

to fissuring of the glacial material, but a range of values (expressed in terms of the pore

pressure ratio, ru ) were used for comparative purposes and to the assess the likely impact of

an adjacent subsoil or overburden mound. The pore pressures will dissipate with time and at

depth this process can be quite slow owing to the low permeability of the glacial till. It will be

enhanced where the adjacent ground is excavated. An assessment has been made of the

stability of the mounds where they lie adjacent to the highwalls, but it is the security of the

slopes themselves which will be critical. Further details are given in Appendix E. For the

purposes of this exercise, a slope gradient of 1v in 1h (45°) was used regardless of the

thickness of the glacial deposits. This is the steepest profile recommended in Section 5.4.1

and represents the most conservative condition.

The factors of safety (FoS) were determined using a grid of circle centres and the results are

shown in Figures D4 to D31. A summary is provided in Tables D2 to D4 where the

following classification has been applied:

<1.00 Unstable

1.0 to 1.1 Barely stable

1.2 to 1.3 Short term stability (i.e. a few days or weeks)

1.4 Medium term stability (i.e. a few weeks or months)

1.5 Long term stability (i.e. months and years)

The analysis results indicate that stability can be maintained if the outer slopes of the

topsoil mounds are formed at not greater than 1v in 2h (26.6º) as planned. Where they

are formed at a lower angle the factors of safety will be higher. The same will apply where the

mounds are constructed at a lower height. If any pore pressures are induced they will be

relatively low and will slowly dissipate. This and the consolidation of the deposited material

will also improve stability. Minor slumping or sliding of the outer surfaces of the mounds

may occur, especially if the topsoil has a high moisture content when it is stripped, but as

experience has shown this will not endanger plant and personnel. The recommended standoff

from the site boundary (3m) will ensure that the security of adjacent properties is not

compromised.



Location of Slip Circle Factor of

Safety Notes

Topsoil Mound Founded on Unit 1 Soil

Slip circles with overall minimum factor of safety.

Slip circles forced through point 1m behind crest of

outer slope.


outer slope.

Slip circles forced through foundation. Fully drained

conditions.

Slip circles forced through foundation (ru = 0.2).



Slip circles forced through foundation with adjacent

excavation highwall. Fully drained conditions.


excavation highwall. Partly drained conditions.

Non-circular failure surface extending from the crest

of the mound and through the upper part of the

foundation to the highwall. Fully drained conditions.

Ditto with ru = 0.2.


1.39

1.47

1.56

1.67

1.54

1.37

1.25

1.67

-

1.88

1.71

1.52

Slip circles confined to the outer surface of the

topsoil mound and are representative of minor

unravelling only. Stable in medium term.

Slip circles with the minimum factor of safety

extend through the full height of the outer

slope. Stable in long term.

Slip circle with the minimum factor of safety

extends through the full height of the outer

slope. Stable in long term.


extend through the full height of the mound.

They penetrate up to 0.5m into the foundation

and extend about 3m from the toe. Stable in

long term.





long term.


daylight in the central part of the outer slope.


and extend about 1.5m from the toe. Stable in

medium term.


daylight in the central part of the outer slope.

They penetrate up to 1m into the foundation


short term.





long term.

Not possible to generate plausible slip surfaces

that extend through the mound and slope.

Stable in long term.



Table D2 Summary of Slope Stability Analysis Results for Topsoil Storage Mounds




Safety Notes



conditions.







excavation highwall (ru = 0.2).






1.57

1.45

1.26

1.13

1.57

1.45

-

1.75

1.59

1.44





long term.


extend through the full height of the mound or

from the upper part of the outer slope. They

penetrate up to 0.5m into the foundation and

extend about 3m from the toe. Stable in long

term.


extends from the upper part of the outer slope.

It penetrates up to 1.0m into the foundation and

extends about 2.5m from the toe. Stable in short

term.




extends about 3.5m from the toe. Barely stable.





long term.


extend through the full height of the mound and

from the upper part of the outer slope. They

penetrate up to 0.5m into the foundation and

extend about 3m from the toe. Stable in long

term. Other slip circles extend at depth through

the foundation and daylight in the excavation

slope.


at higher pore pressure ratios.








Safety Notes



conditions.













1.48

1.34

1.15

1.02

1.48

-

1.63

1.50

1.37





long term.


extends from the central part of the outer slope.


extends about 1.5m from the toe. Stable in

medium term.


extend through the full height of the mound or

the crest of the outer slope. They penetrate up

to 1.5m into the foundation and extend about

3.5m from the toe. Stable in short term.









long term.









D3. Subsoil and Drift Material Storage Mounds

The stability of the subsoil mounds was also assessed using Bishop’s Simplified method for

circular failure. This is again the most likely potential failure mechanism. Complete

remoulding of the subsoil material is unlikely to occur during mound construction because of

the method of emplacement: namely, excavation by backactor, end tipping from rigid and/or

articulated dumptrucks and spreading by dozers. Investigations at the former Acklington and

Colliersdean surface mines in Northumberland suggest that the shear strength of the mound

material can closely match that of the in situ weathered till, more so after a period of

consolidation. The parameters used in these calculations have been based on p’-q analysis of

Unit 1 test data as follows:

c’ = 0 kN/m2 and ’ = 30º.

A bulk density of 2.00 Mg/m3 was used to represent the deposited material, but this will

increase as consolidation ensues. The same foundations were considered as for the topsoil

mounds and where Unit 1 has been used, this is based on the reasonable assumption that not

all of this material will have been removed during the stripping of the subsoil. A mound

height of 10m was adopted with outer slopes of 1v in 2h (26.6°). Fully drained conditions

were assumed, but the effect of induced pore pressures was considered. These will again be

very low at shallow depth due to the presence of fissures. The minimum factors of safety were

determined using a grid of circle centres and the results are presented in Figure D32 to D57.

A summary is provided in Tables D5 to D7. The same classification has been applied as in

Section D2.

The results show that in general the stability of the deposited subsoil can be maintained if the

outer slopes of the mounds are formed at not greater than 1v in 2h (26.6º). The mound

foundations will comprise a combination of the soil types identified in the cable percussion

boreholes, although Unit 2 appears to be predominant. This may or may not be capped by a

layer of Unit 1 material. Layers or beds of laminated clay (Unit 4) will only impact the factors

of safety where they lie at very shallow depth (less than 4m), which is generally not the case.

Minor slumping of the outer slopes of the mounds may occur during or shortly after

placement, but stability will improve as the subsoil consolidates as experience has shown.

Such occurrences will not compromise the safety of plant, personnel and members of the

public. Adjacent properties will remain unaffected because of the standoffs that will be

provided. Nevertheless, it is recommended that the outer slopes of the mounds are graded to

the required profiles as soon as the deposited material reaches 3m in height. This operation

should be continued until construction is completed.

The analysis results are based on a 10m high structure and not all mounds will be constructed

to this height nor will the side slopes be formed as steeply as 1v in 2h (26.6°). Both these

factors will serve to increase the factors of safety. The drift material storage mound will be

constructed to a maximum height of 11m, but its eastern slope will be graded down to about

1v in 5h (11.3°). The stored material will comprise a mixture of Units 1 and 2 and as such the

shear strength should be close to that used in the calculations. However, the recommendations

made with regard to the construction of the subsoil mounds equally apply.




Safety Notes

Subsoil Mound Founded on Unit 1 Soil



outer slope.


outer slope.


outer slope.


conditions.













1.15

1.19

1.23

1.34

1.39

1.32

1.22

1.11

1.30

-

1.37

1.32

1.28


subsoil mound and are representative of minor

unravelling only. Stable in short term.


extend through almost the full length of the

outer slope. Stable in short term.


extend through the full length of the outer

slope. Stable in short term.

As above. Stable in short term


extend from around the crest of the outer slope.



medium term.





short term.


extend from around the crest and upper part of

the outer slope. They penetrate up to 1m into

the foundation and extend about 4.5m from the

toe. Stable in short term.






extend through the toe of the mound and the

upper part of the adjacent safety bench. Stable

in short term. (Barely plausible).



Stable in medium term.

Stable in short term.


Table D5 Summary of Slope Stability Analysis Results for Subsoil Storage Mounds




Safety Notes



conditions.





excavation highwall. Fully and partly drained

conditions.






1.34

1.26

1.12

1.02

-

1.33

1.30

1.26





short term.


extend from the upper part of the outer slope.



short term.




and extend about 4m from the toe. Barely

stable.




and extend about 5.5m from the toe. Barely

stable.










Safety Notes



conditions.





excavation highwall. Fully and partly drained

conditions.






1.29

1.20

1.04

0.92

-

1.30

1.27

1.24


extend from around the crest and the upper part

of the outer slope. They penetrate up to 0.5m

into the foundation and extend about 5.5m from

the toe. Stable in short term.


extend from around the crest and the upper part

of the outer slope. They penetrate up to 1m into






and extend about 5.5m from the toe. Barely

stable.




extends about 3.5m from the toe. Unstable.









D4. Overburden Mounds

Two overburden mounds will be constructed on the site: OBM1 located in the north, which

will be partly founded on opencast backfill and will formed at a maximum height of 25m; and

OBM2 in the western part of the site resting on natural ground at a height of not greater than

27m. The stability of these two mounds has again been assessed using Bishop’s Simplified

method for circular failure. The same foundation models were used as for the assessment of

the topsoil and subsoil mounds, but with the addition of old opencast backfill, for which

suitable shear strength parameters have been taken from the test records for the permitted

Ferneybeds site:

c’ = 6 kN/m2 and ’ = 30º (bulk density 2.10 Mg/m3).

These parameters are representative of a clay rich fill and may well be conservative. The

shear strength will be higher if more rock fragments are present.

Two types of overburden material were considered: a moderately compacted weak rockfill

and a clayfill comprising a remoulded mixture of Units 2 and 3. The shear strength

parameters for the rockfill were estimated using the data provided by Charles and Watts

(1980) and an average vertical stress value for each of the overburden mounds. A bulk density

of 2.0 Mg/m3 was adopted based on experience. The shear strength of the rockfill that will be

produced at the site will be higher because it will contain significant proportions of

moderately strong to strong sandstone. The parameters for the remoulded clay were taken

from Table D1 and Appendix B. Fully drained and partly drained conditions were considered

for the foundation.

Section profiles were determined for the outer slopes of the mounds and the steepest overall

slope was assessed for Mound OBM1. This is almost identical to the eastern slope of OBM2,

but the western side of this mound was assessed because of the adjacent A1068. Banks have

designed the mounds with an 8 to 10m high, 1v in 2h (26.6°) outer slope along the toe, but

with a gently graded upper part to minimize visual intrusion. The topsoil and subsoil storage

mounds will also provide a screen.

The analysis results have been determined using a grid of circle centres and are again

expressed as minimum factors of safety (Figures D58 to D102). They are summarized in

Tables D8 and D13 and are classified in the same manner as in Sections D2 and D3.




Safety Notes

Mainly Clayfill Founded on Old Opencast Backfill



1v in 2h slope.


conditions.



1.04

1.10

1.40

1.34

1.25


mound and are representative of minor

unravelling only. Barely stable conditions.


extend through the 1v in 2h section of the outer

slope. Barely stable conditions.


extends through the full height of the 1v in 2h

section of slope. It penetrates up to 0.5m into

the foundation and extends about 4.5m from the

toe. Stable in medium term.


extend through the full height of the 1v in 2h

section of slope. They penetrate up to 0.5m into








Mainly Clayfill Founded on Unit 2


conditions.




1.22

1.16

1.05

0.96




the foundation and extend about 8m from the








extend from the upper part of the 1v in 2h



toe. Barely stable.



section of slope. They penetrate up to 2m into


toe. Barely stable.

Table D8 Summary of Slope Stability Analysis Results for Overburden Mound OBM1




Safety Notes



conditions.




1.18

1.11

0.97

0.87







extend from the crest and upper part of the 1v

in 2h section of slope. They penetrate up to

0.5m into the foundation and extend about

4.5m from the toe. Barely stable.





toe. Barely stable.





toe. Unstable.

Rockfill Founded on Opencast Backfill



conditions.



2.27

2.27

2.04

1.76





toe. Stable in long term.




















Safety Notes

Rockfill Founded on Unit 2


conditions.




1.99

1.75

1.47

1.29













section of slope. It penetrates up to 4m into the

foundation and extends about 7.5m from the









conditions.




1.82

1.60

1.31

1.14




















toe. Barely stable.





Safety Notes




1v in 2h slope.


1v in 2h slope.


conditions.




1.04

1.11

1.22

1.23

1.16

1.05

0.96


mound and are representative of minor

unravelling only. Barely stable conditions.



section of the outer slope. Barely stable

conditions.



section of the outer slope. Stable in short term.







extend from the crest of the 1v in 2h section of

slope. They penetrate up to 0.5m into the

foundation and extend about 4m from the toe.



extend from the crest and upper part of the 1v

in 2h section of slope. They penetrate up to

1.5m into the foundation and extend about 4m

from the toe. Barely stable conditions.


extend from the crest and the upper part of the

1v in 2h section of slope. They penetrate up to

2.5m into the foundation and extend about

5.5m from the toe. Barely stable conditions.





Safety Notes



conditions.




1.18

1.11

0.97

0.87







extend from around the crest and upper part of

the 1v in 2h section of slope. They penetrate up

to 4m into the foundation and extend about

7.5m from the toe. Barely stable conditions.





toe. Barely stable conditions.





toe. Unstable.




conditions.




2.05

2.05

1.80

1.50

1.31























section of slope. It penetrates up to 4m into the

foundation and extends about 3.5m from the






Safety Notes



conditions.




1.87

1.64

1.34

1.16













slope. They penetrate up to 3.5m into the

foundation and extend about 6m from the toe.

Stable in medium term.



section of slope. It penetrates up to 3.5m into

the foundation and extends about 4m from the



The analysis results are considered to reflect very conservative conditions and the factors of

safety are likely to be higher. In all cases, however, they show that the slip circles with the

minimum factors of safety are focused on the steeper, 1v in 2h (26.6°) section of the mounds’

outer slopes. Clayfill is the least stable overburden material and there is a risk that the outer

slopes will slump where they are formed at 1v in 2h (26.6°). The risk of bearing capacity

failure will diminish as the pore pressures dissipate and the material consolidates, but any

adverse effects will not be felt beyond the site boundary if the recommended standoffs are

applied. The pore pressures used in the analysis will be lower at shallower depth and where

drainage is facilitated by granular opencast backfill. The presence of topsoil and subsoil

mounds will also serve to load the toe and increase the factors of safety. The quality of the

overburden will also be variable. Remoulding of the clay material will only be partial and in

many instances it will retain its in situ strength. High factors of safety and satisfactory levels

of stability were achieved using the shear strength parameters for rockfill, which may also

prove to be conservative. A mixture of clay and rockfill should therefore achieve the

necessary degree of security for the two mounds. However, it is recommended that as much

rockfill as possible is incorporated into the outer perimeters of the two mounds where the

steeper profiles are to be formed. This bund should be at least 25m wide and should be

formed as the mound level is raised to between 8 and 10m in height.

The standoff between the mounds and the excavations will be sufficient to prevent significant

interaction.

Soil no 1 2γ 18.15 20.6Γs1 1 1c 0 0Γc 1 1φ 34.8 31.1Γφ 1 1Units : kN meters and degreesCalculation method : Bishop

1.55 1.55 1.55 1.55 1.55 1.4 1.41 5.65 7.56 9.52 1.55 1.55 1.55 1.4 1.41 1.42 1.43 4.84 6.7 8.3 1.55 1.4 1.41 1.42 1.43 1.44 1.45 4.16 5.98 5.98 7.4 1.41 1.42 1.43 1.44 1.45 1.45 1.46 3.55 1.39 6.7 1.43 1.44 1.45 1.45 1.46 1.47 1.39 1.4 4.82 6.15 6.15 1.45 1.45 1.46 1.47 1.39 1.4 1.41 1.41 4.37 5.65 1.46 1.47 1.39 1.4 1.41 1.41 1.42 1.42 3.95 5.21 1.39 1.4 1.41 1.41 1.42 1.42 1.43 1.43 3.55 4.82 1.41 1.41 1.42 1.42 1.43 1.43 1.44 1.44 1.39 1.4 1.42 1.42 1.43 1.43 1.44 1.44 1.39 1.4 1.4 1.41

Γmin 1.39Γs3 1

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0 10 1

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TERRASOL

Highthorn Surface Mine6m High Topsoil Mound Unit 1 Foundation 1v in 2h Outer Slopes File : Topsoil Gen.tal Proj : 09059

Study made by : Figure :

Date : 05/07/2001 Time : 00:16:00Copyright (c) TERRASOL

Topsoil

Unit 1

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Γmin 1.47Γs3 1

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0 10 1

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Topsoil

Unit 1






Γmin 1.56Γs3 1

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Topsoil

Unit 1





Soil noImposed 1

Imposed 2

γ 18.15 20.6Γs1 1 1c 0 0Γc 1 1φ 34.8 31.1Γφ 1 1Units : kN meters and degreesCalculation method : BishopConditions concerning soils 1 and 2 are verified simultaneously.

2.44 2.22 2.03 1.87 1.83 2.01 2.93 5.65 7.56 9.19 2.24 2.07 1.93 1.82 1.79 1.93 2.56 4.84 6.7 8.14 2.12 1.98 1.86 1.78 1.76 1.88 2.32 4.16 5.98 5.98 7.34 2.07 1.92 1.81 1.74 1.73 1.83 2.16 3.55 5.35 6.7 6.7 2.05 1.89 1.78 1.72 1.72 1.79 2.06 2.97 4.82 6.15 6.15 2.05 1.89 1.76 1.7 1.7 1.76 1.96 2.61 4.37 5.65 2.07 1.9 1.77 1.7 1.69 1.74 1.9 2.38 3.95 5.21 2.1 1.93 1.78 1.69 1.67 1.72 1.85 2.22 3.55 4.82 2.14 1.96 1.82 1.72 1.67 1.7 1.82 2.1 3.05 4.47 2.17 2 1.85 1.75 1.68 1.69 1.78 2.01 2.68 4.16 4.16

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Unit 1





Soil noImposed 1

Imposed 2

γ 18.15 20.6Γs1 1 1c 0 0Γc 1 1φ 34.8 31.1Γφ 1 1ru 0 .2Units : kN meters and degreesCalculation method : BishopConditions concerning soils 1 and 2 are verified simultaneously.

2.16 1.96 1.78 1.65 1.6 1.76 2.52 4.6 6.09 6.09 7.38 2 1.84 1.7 1.61 1.58 1.7 2.24 3.98 5.43 5.43 6.56 1.91 1.91 1.76 1.66 1.59 1.57 1.69 2.05 3.48 3.48 4.86 4.86 5.91 1.87 1.87 1.72 1.63 1.57 1.56 1.66 1.93 3.06 4.38 4.38 5.42 1.86 1.86 1.71 1.71 1.61 1.56 1.56 1.62 1.86 2.63 3.96 4.99 1.86 1.72 1.72 1.61 1.55 1.55 1.61 1.78 2.34 3.63 3.63 4.6 1.88 1.88 1.73 1.62 1.56 1.55 1.6 1.74 2.15 3.33 3.33 4.26 1.91 1.91 1.76 1.63 1.55 1.54 1.58 1.71 2.02 3.06 3.06 3.96 1.94 1.94 1.79 1.66 1.58 1.54 1.58 1.69 1.93 2.73 3.7 1.97 1.83 1.7 1.61 1.56 1.57 1.65 1.86 2.43 3.48 3.48 3.48

Γmin 1.54Γs3 1

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Soil noImposed 1

Imposed 2


1.91 1.74 1.6 1.45 1.38 1.56 2.5 4.14 4.14 5.21 6.31 1.76 1.76 1.63 1.63 1.48 1.41 1.37 1.5 2.11 3.53 4.6 5.57 1.63 1.53 1.44 1.4 1.37 1.47 1.92 3.11 3.11 4.14 4.14 4.14 4.97 1.58 1.47 1.43 1.41 1.41 1.38 1.49 1.77 2.76 3.73 4.48 1.56 1.44 1.39 1.38 1.38 1.39 1.48 1.69 2.5 2.5 3.39 4.14 4.14 1.56 1.45 1.38 1.39 1.41 1.45 1.67 2.27 3.09 3.81 1.58 1.58 1.47 1.4 1.38 1.39 1.45 1.6 2.05 2.86 3.53 1.6 1.6 1.5 1.42 1.39 1.41 1.46 1.57 1.91 2.67 3.3 1.63 1.63 1.53 1.45 1.41 1.4 1.44 1.56 1.82 2.47 3.1 1.66 1.66 1.56 1.49 1.44 1.41 1.46 1.56 1.75 2.35 2.91 2.91

Γmin 1.37Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 1





Soil noImposed 1

Imposed 2


1.52 1.52 1.41 1.31 1.27 1.25 1.37 1.9 3 3.86 3.86 4.66 1.43 1.34 1.29 1.29 1.26 1.26 1.35 1.75 2.65 3.49 3.49 3.49 4.17 1.39 1.3 1.29 1.29 1.27 1.28 1.28 1.39 1.63 2.4 2.4 3.16 3.76 1.38 1.3 1.3 1.26 1.26 1.25 1.29 1.39 1.56 2.19 2.88 3.49 3.49 1.39 1.31 1.31 1.26 1.27 1.3 1.36 1.36 1.57 2.03 2.64 3.21 1.39 1.33 1.28 1.26 1.28 1.37 1.37 1.5 1.9 2.46 3 3 1.41 1.35 1.31 1.28 1.3 1.38 1.49 1.79 2.31 2.82 2.82 1.43 1.38 1.34 1.31 1.31 1.35 1.48 1.71 2.16 2.65 1.46 1.41 1.38 1.38 1.38 1.34 1.33 1.37 1.48 1.67 2.06 2.49 1.48 1.42 1.37 1.35 1.35 1.38 1.38 1.44 1.63 1.63 1.97 2.37

Γmin 1.25Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 1





Soil noImposed 1

Imposed 2


1.89 1.78 1.72 1.72 1.79 2.06 2.42 2.42 2.31 2.18 2.06 1.89 1.76 1.7 1.7 1.76 1.96 2.35 2.35 2.35 2.24 2.13 2.02 1.9 1.77 1.7 1.69 1.74 1.9 2.29 2.29 2.29 2.19 2.19 2.08 1.98 1.93 1.78 1.69 1.67 1.72 1.85 2.2 2.15 2.15 2.15 2.05 2.05 1.96 1.96 1.96 1.82 1.72 1.67 1.7 1.82 2.08 2.12 2.12 2.12 2.03 2.03 1.94 1.94 2 1.85 1.75 1.68 1.69 1.78 1.99 2.09 2.09 2.01 2.01 2.01 1.92 2.04 1.89 1.78 1.71 1.69 1.76 1.92 2.07 2.07 2.07 2 2 2 1.91 1.91 2.08 1.93 1.82 1.74 1.7 1.73 1.86 2.04 1.99 1.99 1.99 1.91 1.91 1.91 1.91 2.12 1.97 1.86 1.77 1.72 1.72 1.81 1.98 1.98 1.98 1.98 1.9 1.9 2.16 2.02 1.9 1.81 1.75 1.74 1.78 1.9 1.97 1.97 1.9 1.9 1.9

Γmin 1.67Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL

Highthorn Surface Mine6m High Topsoil Mound Unit 1 Foundation 1v in 2h Outer Slopes File : Topsoil Exc.tal Proj : 09059



Topsoil

Unit 1





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.88Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 1





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.71Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 1





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.52Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 1





Soil noImposed 1

Imposed 2


2.14 2.14 1.95 1.81 1.7 1.63 1.61 1.73 2.11 3.65 3.65 5.13 5.13 2.09 1.9 1.77 1.77 1.67 1.6 1.6 1.7 1.98 3.19 4.61 2.08 1.89 1.74 1.65 1.6 1.6 1.66 1.91 2.71 4.17 2.09 2.09 1.9 1.75 1.64 1.58 1.58 1.65 1.83 2.4 3.81 3.81 2.1 1.92 1.76 1.65 1.59 1.58 1.64 1.78 2.2 3.48 2.13 2.13 1.95 1.79 1.66 1.58 1.57 1.61 1.74 2.07 3.18 2.16 1.98 1.83 1.69 1.61 1.57 1.61 1.72 1.97 2.81 2.19 2.02 1.86 1.73 1.64 1.59 1.59 1.68 1.9 2.49 2.23 2.05 1.9 1.77 1.68 1.61 1.6 1.67 1.84 2.28 2.27 2.27 2.09 1.94 1.81 1.71 1.65 1.62 1.65 1.79 2.14

Γmin 1.57Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


1.87 1.71 1.58 1.53 1.53 1.48 1.45 1.57 1.88 3.05 4.18 4.18 1.84 1.68 1.55 1.49 1.45 1.46 1.55 1.78 2.72 3.78 1.83 1.68 1.55 1.48 1.46 1.47 1.52 1.74 2.42 3.44 1.84 1.69 1.56 1.49 1.45 1.45 1.51 1.67 2.16 3.16 1.85 1.71 1.59 1.51 1.47 1.46 1.52 1.64 2 2.94 1.87 1.74 1.62 1.53 1.46 1.45 1.5 1.62 1.9 2.71 1.9 1.77 1.66 1.56 1.49 1.46 1.51 1.61 1.82 2.53 2.53 1.9 1.78 1.69 1.6 1.53 1.48 1.49 1.58 1.77 2.27 1.93 1.82 1.73 1.73 1.64 1.56 1.51 1.5 1.58 1.73 2.1 1.96 1.85 1.77 1.77 1.69 1.69 1.6 1.55 1.52 1.56 1.68 1.99

Γmin 1.45Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


1.54 1.54 1.4 1.31 1.3 1.3 1.28 1.29 1.29 1.4 1.65 2.43 2.43 3.21 1.52 1.39 1.31 1.31 1.27 1.26 1.3 1.4 1.58 2.21 2.93 1.52 1.4 1.32 1.32 1.27 1.28 1.31 1.37 1.37 1.58 2.05 2.68 1.49 1.4 1.34 1.29 1.27 1.29 1.38 1.38 1.51 1.92 1.92 2.5 1.51 1.42 1.37 1.31 1.29 1.31 1.39 1.5 1.8 2.35 2.35 1.53 1.45 1.39 1.35 1.31 1.32 1.36 1.49 1.49 1.72 2.19 1.56 1.47 1.42 1.38 1.35 1.34 1.38 1.49 1.67 2.09 1.58 1.58 1.49 1.43 1.38 1.36 1.36 1.39 1.39 1.39 1.45 1.64 1.99 1.61 1.61 1.52 1.46 1.42 1.39 1.39 1.41 1.41 1.41 1.48 1.48 1.48 1.62 1.91 1.91 1.64 1.64 1.64 1.55 1.49 1.45 1.42 1.42 1.43 1.43 1.46 1.58 1.58 1.84

Γmin 1.26Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


1.42 1.32 1.23 1.16 1.14 1.15 1.26 1.72 2.59 3.3 1.35 1.26 1.26 1.19 1.19 1.15 1.15 1.15 1.25 1.62 2.3 3 3 1.33 1.24 1.24 1.16 1.16 1.16 1.16 1.16 1.29 1.53 2.1 2.1 2.71 1.32 1.32 1.24 1.17 1.14 1.13 1.18 1.18 1.29 1.47 1.94 2.49 1.33 1.33 1.26 1.26 1.26 1.26 1.19 1.15 1.16 1.2 1.2 1.25 1.45 1.82 2.29 1.31 1.23 1.18 1.16 1.16 1.18 1.26 1.42 1.72 2.16 1.33 1.25 1.21 1.18 1.18 1.21 1.21 1.27 1.42 1.42 1.66 2.03 1.34 1.28 1.28 1.23 1.21 1.21 1.22 1.25 1.38 1.58 1.92 1.36 1.3 1.3 1.26 1.26 1.24 1.23 1.25 1.25 1.29 1.37 1.55 1.84 1.39 1.33 1.33 1.29 1.29 1.29 1.25 1.24 1.24 1.27 1.35 1.35 1.53 1.79

Γmin 1.13Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


2.14 2.14 1.95 1.81 1.7 1.63 1.61 1.73 2.11 2.24 2.09 2.09 1.9 1.77 1.77 1.67 1.6 1.6 1.7 1.98 2.14 2.01 2.08 1.89 1.74 1.65 1.6 1.6 1.66 1.91 2.06 1.96 2.09 2.09 1.9 1.75 1.64 1.58 1.58 1.65 1.83 2 2 1.9 2.1 1.92 1.76 1.65 1.59 1.58 1.64 1.78 1.96 1.96 1.96 1.86 2.13 2.13 1.95 1.79 1.66 1.58 1.57 1.61 1.74 1.93 1.93 1.93 1.84 1.84 1.84 2.16 1.98 1.83 1.69 1.61 1.57 1.61 1.72 1.9 1.9 1.9 1.81 2.19 2.02 1.86 1.73 1.64 1.59 1.59 1.68 1.88 1.88 1.88 1.88 1.88 1.8 1.8 1.8 2.23 2.05 1.9 1.77 1.68 1.61 1.6 1.67 1.82 1.79 1.79 1.79 1.79 2.27 2.27 2.09 1.94 1.81 1.71 1.65 1.62 1.65 1.78 1.78

Γmin 1.57Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


1.87 1.71 1.58 1.53 1.53 1.48 1.45 1.57 1.88 1.79 1.66 1.84 1.68 1.55 1.49 1.45 1.46 1.55 1.78 1.72 1.61 1.83 1.68 1.55 1.48 1.46 1.47 1.52 1.74 1.74 1.66 1.66 1.57 1.84 1.69 1.56 1.49 1.45 1.45 1.51 1.67 1.61 1.53 1.85 1.71 1.59 1.51 1.47 1.46 1.52 1.64 1.58 1.5 1.87 1.74 1.62 1.53 1.46 1.45 1.5 1.62 1.56 1.48 1.9 1.77 1.66 1.56 1.49 1.46 1.51 1.61 1.54 1.46 1.9 1.78 1.69 1.6 1.53 1.48 1.49 1.58 1.53 1.45 1.93 1.82 1.73 1.73 1.64 1.56 1.51 1.5 1.58 1.53 1.45 1.96 1.85 1.77 1.77 1.69 1.69 1.6 1.55 1.52 1.55 1.53 1.46 1.46 1.46

Γmin 1.45Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.75Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.59Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.44Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 2





Soil noImposed 1

Imposed 2


2.18 2.02 2.02 1.84 1.68 1.56 1.51 1.66 2.35 4.14 5.46 5.46 2.03 1.87 1.87 1.74 1.74 1.61 1.53 1.5 1.61 2.1 3.6 4.87 1.95 1.79 1.65 1.58 1.52 1.5 1.61 1.94 3.17 4.37 1.92 1.75 1.61 1.55 1.55 1.5 1.5 1.59 1.83 2.82 3.95 1.9 1.75 1.61 1.54 1.5 1.5 1.55 1.78 2.47 3.59 1.91 1.76 1.62 1.55 1.55 1.48 1.49 1.55 1.71 2.21 3.29 1.93 1.78 1.65 1.56 1.51 1.5 1.55 1.67 2.05 3.05 1.95 1.8 1.68 1.57 1.5 1.48 1.53 1.65 1.93 2.82 2.82 1.97 1.83 1.71 1.6 1.53 1.49 1.53 1.63 1.85 2.58 1.99 1.87 1.87 1.75 1.64 1.56 1.51 1.52 1.6 1.8 2.31

Γmin 1.48Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


1.91 1.91 1.7 1.52 1.52 1.38 1.58 2.98 4.65 5.72 6.92 8.5 1.69 1.56 1.42 1.35 1.52 2.42 3.96 3.96 4.98 6.03 7.38 1.58 1.45 1.39 1.34 1.47 2.05 3.38 4.4 4.4 5.32 6.36 1.49 1.41 1.38 1.38 1.35 1.44 1.87 2.98 2.98 3.95 4.75 5.69 1.44 1.44 1.4 1.38 1.36 1.46 1.74 2.66 3.57 4.28 5.11 1.41 1.36 1.35 1.37 1.46 1.65 2.41 3.25 3.25 3.95 4.67 1.42 1.36 1.36 1.39 1.43 1.64 2.2 2.96 3.64 4.31 1.44 1.37 1.35 1.37 1.44 1.57 2.01 2.74 3.38 3.97 1.47 1.4 1.37 1.39 1.45 1.55 1.88 2.57 3.16 3.7 1.5 1.43 1.39 1.39 1.39 1.43 1.54 1.79 2.38 2.97 3.49 Γmin 1.34

Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


1.45 1.45 1.34 1.26 1.17 1.16 1.3 1.97 3.02 3.77 4.55 1.34 1.26 1.18 1.16 1.17 1.27 1.73 2.61 3.33 4.02 1.28 1.28 1.22 1.22 1.17 1.16 1.16 1.27 1.63 2.32 3.02 3.61 1.26 1.18 1.17 1.18 1.18 1.18 1.3 1.53 2.12 2.12 2.74 3.25 1.26 1.19 1.15 1.15 1.19 1.3 1.48 1.96 2.51 3.03 3.03 1.28 1.28 1.28 1.21 1.17 1.17 1.17 1.21 1.26 1.46 1.83 2.31 2.79 1.25 1.2 1.18 1.18 1.18 1.19 1.27 1.43 1.73 2.18 2.18 2.61 1.28 1.23 1.2 1.2 1.2 1.22 1.29 1.29 1.43 1.43 1.68 1.68 2.05 2.47 2.47 2.47 1.3 1.3 1.26 1.26 1.23 1.23 1.23 1.24 1.27 1.39 1.6 1.94 2.32 1.33 1.33 1.28 1.26 1.25 1.26 1.3 1.38 1.56 1.86 1.86 1.86 2.19

Γmin 1.15Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


1.24 1.15 1.09 1.03 1.03 1.19 1.19 1.71 2.55 2.55 3.16 3.81 1.15 1.08 1.03 1.03 1.03 1.08 1.08 1.17 1.52 2.22 2.8 2.8 3.36 1.1 1.06 1.06 1.03 1.03 1.04 1.18 1.18 1.46 1.98 2.56 2.56 2.56 2.56 3.03 1.1 1.05 1.04 1.05 1.06 1.17 1.4 1.83 2.31 2.73 1.1 1.06 1.03 1.02 1.07 1.17 1.36 1.71 2.13 2.56 2.56 1.11 1.08 1.08 1.05 1.05 1.09 1.15 1.34 1.63 1.97 2.35 1.1 1.06 1.04 1.05 1.08 1.17 1.29 1.52 1.88 1.88 2.22 1.13 1.09 1.07 1.07 1.1 1.16 1.16 1.28 1.49 1.77 2.1 1.13 1.1 1.09 1.09 1.11 1.17 1.27 1.44 1.7 1.98 1.16 1.13 1.12 1.12 1.12 1.12 1.14 1.14 1.18 1.26 1.26 1.4 1.62 1.89

Γmin 1.02Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


2.02 2.02 1.84 1.68 1.56 1.51 1.66 2.32 2.17 1.98 1.81 1.87 1.87 1.74 1.74 1.61 1.53 1.5 1.61 2.1 2.03 1.88 1.74 1.79 1.65 1.58 1.52 1.5 1.61 1.94 1.92 1.79 1.68 1.75 1.61 1.55 1.55 1.5 1.5 1.59 1.83 1.84 1.73 1.63 1.75 1.61 1.54 1.5 1.5 1.55 1.78 1.78 1.78 1.69 1.59 1.76 1.62 1.55 1.55 1.48 1.49 1.55 1.71 1.73 1.73 1.64 1.56 1.78 1.65 1.56 1.51 1.5 1.55 1.67 1.69 1.61 1.53 1.53 1.8 1.68 1.57 1.5 1.48 1.53 1.65 1.67 1.67 1.59 1.51 1.51 1.83 1.71 1.6 1.53 1.49 1.53 1.63 1.65 1.65 1.57 1.5 1.5 1.87 1.87 1.75 1.64 1.56 1.51 1.52 1.6 1.64 1.64 1.56 1.56 1.49

Γmin 1.48Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.63Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.5Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.37Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Topsoil

Unit 4





Soil no 1 2γ 19.62 20.6Γs1 1 1c 0 0Γc 1 1φ 30 31.1Γφ 1 1Units : kN meters and degreesCalculation method : Bishop

1.28 1.28 1.28 1.28 1.28 1.16 1.17 1.18 1.19 1.2 1.28 1.28 1.28 1.16 1.17 1.18 1.19 1.2 1.2 1.21 1.28 1.16 1.17 1.18 1.19 1.2 1.2 1.21 1.21 1.22 1.17 1.18 1.19 1.2 1.2 1.21 1.21 1.22 1.15 1.16 1.19 1.2 1.2 1.21 1.21 1.22 1.15 1.16 1.17 1.17 1.2 1.21 1.21 1.22 1.15 1.16 1.17 1.17 1.18 1.18 1.21 1.22 1.15 1.16 1.17 1.17 1.18 1.18 1.19 1.19 1.15 1.16 1.17 1.17 1.18 1.18 1.19 1.19 1.19 1.2 1.17 1.17 1.18 1.18 1.19 1.19 1.19 1.2 1.16 1.16 1.18 1.18 1.19 1.19 1.19 1.2 1.16 1.16 1.17 1.17

Γmin 1.15Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL

Highthorn Surface Mine10m High Subsoil Unit 1 Foundation 1v in 2h Outer Slopes File : Subsoil Gen.tal Proj : 09059



Subsoil

Unit 1






Γmin 1.19Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1






Γmin 1.23Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1






Γmin 1.34Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2

γ 19.62 20.6Γs1 1 1c 0 0Γc 1 1φ 30 31.1Γφ 1 1Units : kN meters and degreesCalculation method : BishopConditions concerning soils 1 and 2 are verified simultaneously.

1.57 1.5 1.45 1.41 1.4 1.41 1.43 1.48 1.6 1.87 1.58 1.51 1.45 1.41 1.4 1.4 1.42 1.46 1.56 1.78 1.6 1.53 1.47 1.42 1.39 1.39 1.41 1.45 1.53 1.71

Γmin 1.39Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2

γ 19.62 20.6Γs1 1 1c 0 0Γc 1 1φ 30 31.1Γφ 1 1ru 0 .2Units : kN meters and degreesCalculation method : BishopConditions concerning soils 1 and 2 are verified simultaneously.

1.46 1.4 1.35 1.33 1.32 1.33 1.35 1.41 1.51 1.74 1.47 1.41 1.36 1.33 1.32 1.32 1.35 1.39 1.48 1.66 1.49 1.43 1.38 1.34 1.32 1.32 1.34 1.38 1.46 1.6

Γmin 1.32Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2


1.27 1.24 1.24 1.24 1.24 1.23 1.23 1.23 1.26 1.34 1.51 2.09 2.09 2.66 1.25 1.25 1.25 1.23 1.22 1.22 1.25 1.31 1.47 1.88 2.51 1.25 1.25 1.24 1.24 1.22 1.23 1.24 1.26 1.31 1.44 1.74 2.37 2.37 1.25 1.25 1.23 1.23 1.23 1.23 1.22 1.23 1.25 1.29 1.4 1.65 2.25 2.25 1.26 1.26 1.23 1.22 1.22 1.25 1.25 1.26 1.3 1.39 1.56 2.12 1.27 1.27 1.23 1.22 1.23 1.23 1.24 1.24 1.25 1.28 1.36 1.52 1.93 1.28 1.24 1.22 1.22 1.23 1.23 1.26 1.29 1.35 1.48 1.78 1.3 1.3 1.3 1.26 1.23 1.23 1.23 1.26 1.28 1.33 1.44 1.68 1.31 1.27 1.25 1.23 1.24 1.24 1.25 1.27 1.33 1.42 1.6 1.33 1.29 1.26 1.24 1.24 1.24 1.24 1.28 1.32 1.39 1.55

Γmin 1.22Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2


1.15 1.15 1.15 1.12 1.14 1.14 1.14 1.14 1.15 1.2 1.2 1.28 1.43 1.86 2.29 1.13 1.14 1.12 1.13 1.13 1.14 1.19 1.25 1.4 1.76 1.76 2.16 1.14 1.13 1.11 1.15 1.15 1.16 1.2 1.2 1.26 1.38 1.64 2.05 1.14 1.12 1.13 1.14 1.14 1.15 1.15 1.19 1.24 1.34 1.56 1.98 1.98 1.98 1.15 1.13 1.13 1.13 1.13 1.17 1.17 1.2 1.25 1.25 1.33 1.49 1.87 1.17 1.14 1.13 1.15 1.15 1.16 1.16 1.18 1.24 1.31 1.45 1.79 1.18 1.16 1.16 1.14 1.15 1.15 1.15 1.2 1.25 1.25 1.31 1.43 1.69 1.18 1.16 1.15 1.15 1.15 1.15 1.17 1.17 1.17 1.19 1.23 1.29 1.39 1.6 1.19 1.17 1.16 1.16 1.16 1.16 1.17 1.17 1.18 1.23 1.29 1.38 1.53 1.21 1.19 1.17 1.17 1.17 1.17 1.2 1.2 1.2 1.23 1.28 1.35 1.49

Γmin 1.11Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2


Γmin 1.3Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL

Highthorn Surface Mine10m High Subsoil Mound Unit 1 Foundation1v in 2h Outer Slopes File : Subsoil Exc.tal Proj : 09059



Subsoil

Unit 1





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.37Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.32Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.28Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 1





Soil noImposed 1

Imposed 2


1.48 1.42 1.37 1.34 1.34 1.35 1.37 1.42 1.53 1.77 1.49 1.43 1.38 1.35 1.34 1.34 1.36 1.41 1.5 1.69 1.51 1.45 1.4 1.36 1.34 1.34 1.36 1.39 1.47 1.63

Γmin 1.34Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


1.32 1.3 1.29 1.29 1.28 1.28 1.3 1.35 1.49 1.82 2.6 2.6 1.32 1.29 1.28 1.27 1.27 1.29 1.34 1.45 1.71 2.44 1.32 1.29 1.28 1.27 1.28 1.29 1.33 1.43 1.62 2.28 2.28 1.33 1.3 1.3 1.28 1.28 1.26 1.27 1.28 1.32 1.4 1.57 2.02 1.34 1.3 1.28 1.28 1.27 1.27 1.29 1.32 1.39 1.52 1.86 1.36 1.32 1.32 1.28 1.27 1.26 1.29 1.31 1.37 1.48 1.74 1.37 1.33 1.33 1.29 1.27 1.27 1.28 1.3 1.36 1.46 1.65 1.39 1.35 1.35 1.31 1.31 1.28 1.27 1.27 1.31 1.35 1.43 1.59 1.41 1.36 1.36 1.32 1.29 1.27 1.28 1.3 1.33 1.41 1.54

Γmin 1.26Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


1.43 1.35 1.27 1.27 1.21 1.18 1.16 1.16 1.13 1.22 1.45 2.21 1.36 1.3 1.24 1.18 1.14 1.13 1.15 1.22 1.38 2.01 1.3 1.25 1.2 1.2 1.18 1.15 1.14 1.16 1.19 1.37 1.83 1.26 1.22 1.2 1.2 1.2 1.15 1.13 1.12 1.15 1.15 1.2 1.31 1.67 1.23 1.21 1.21 1.17 1.17 1.13 1.15 1.15 1.14 1.16 1.21 1.29 1.56 1.22 1.22 1.19 1.19 1.19 1.15 1.15 1.13 1.13 1.13 1.15 1.19 1.29 1.49 1.21 1.17 1.16 1.16 1.13 1.15 1.15 1.14 1.16 1.2 1.28 1.44 1.22 1.22 1.22 1.22 1.17 1.14 1.15 1.13 1.13 1.15 1.19 1.26 1.41 1.22 1.22 1.22 1.22 1.17 1.14 1.14 1.12 1.15 1.17 1.2 1.26 1.38 1.23 1.23 1.23 1.23 1.18 1.15 1.13 1.14 1.14 1.16 1.16 1.2 1.25 1.35

Γmin 1.12Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


1.22 1.17 1.11 1.09 1.09 1.09 1.05 1.04 1.04 1.14 1.33 1.92 1.18 1.18 1.12 1.09 1.09 1.05 1.02 1.02 1.05 1.14 1.28 1.76 1.14 1.09 1.06 1.06 1.06 1.06 1.04 1.04 1.04 1.07 1.11 1.29 1.29 1.64 1.64 1.11 1.07 1.06 1.04 1.04 1.02 1.02 1.05 1.12 1.23 1.54 1.08 1.06 1.04 1.02 1.02 1.04 1.04 1.07 1.07 1.13 1.23 1.47 1.47 1.08 1.08 1.05 1.02 1.03 1.02 1.02 1.05 1.1 1.21 1.41 1.08 1.08 1.05 1.03 1.02 1.02 1.05 1.05 1.05 1.05 1.07 1.12 1.12 1.21 1.37 1.07 1.04 1.03 1.03 1.03 1.04 1.04 1.07 1.14 1.14 1.14 1.18 1.33 1.08 1.05 1.04 1.04 1.04 1.04 1.04 1.04 1.02 1.02 1.06 1.06 1.06 1.08 1.12 1.12 1.19 1.19 1.32 1.32 1.09 1.06 1.05 1.05 1.05 1.04 1.04 1.04 1.04 1.05 1.05 1.05 1.05 1.05 1.05 1.06 1.14 1.14 1.2 1.2 1.28

Γmin 1.02Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.33Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.3Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.26Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 2





Soil noImposed 1

Imposed 2


1.48 1.43 1.43 1.43 1.38 1.35 1.32 1.3 1.3 1.32 1.39 1.55 1.47 1.42 1.37 1.35 1.35 1.32 1.31 1.3 1.32 1.38 1.51 1.48 1.41 1.36 1.34 1.34 1.31 1.3 1.29 1.31 1.36 1.47 1.49 1.49 1.42 1.36 1.33 1.33 1.31 1.29 1.3 1.31 1.35 1.44 1.5 1.5 1.43 1.37 1.33 1.31 1.29 1.3 1.31 1.34 1.42 1.51 1.51 1.44 1.38 1.33 1.3 1.3 1.29 1.31 1.34 1.4 1.53 1.53 1.45 1.4 1.4 1.34 1.31 1.29 1.29 1.3 1.33 1.38 1.54 1.47 1.41 1.41 1.36 1.32 1.29 1.29 1.3 1.32 1.38 1.56 1.56 1.49 1.49 1.43 1.43 1.37 1.33 1.3 1.29 1.29 1.32 1.36 1.58 1.58 1.51 1.51 1.45 1.45 1.39 1.34 1.31 1.29 1.3 1.31 1.35

Γmin 1.29Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil noImposed 1

Imposed 2


1.31 1.26 1.23 1.23 1.23 1.21 1.2 1.21 1.23 1.3 1.45 1.31 1.26 1.23 1.23 1.22 1.22 1.2 1.22 1.23 1.23 1.25 1.3 1.42 1.32 1.27 1.23 1.23 1.21 1.21 1.21 1.21 1.22 1.22 1.24 1.28 1.38 1.33 1.28 1.28 1.24 1.24 1.21 1.21 1.21 1.2 1.23 1.25 1.29 1.37 1.34 1.29 1.29 1.25 1.25 1.22 1.2 1.21 1.22 1.24 1.27 1.34 1.36 1.3 1.26 1.26 1.23 1.21 1.21 1.22 1.25 1.28 1.34 1.36 1.31 1.28 1.28 1.28 1.24 1.22 1.21 1.22 1.25 1.25 1.27 1.32 1.37 1.33 1.29 1.29 1.26 1.23 1.22 1.22 1.24 1.24 1.26 1.32 1.39 1.35 1.31 1.31 1.31 1.27 1.25 1.23 1.23 1.23 1.24 1.27 1.31 1.41 1.41 1.36 1.33 1.33 1.33 1.29 1.26 1.24 1.24 1.24 1.25 1.25 1.26 1.3

Γmin 1.2Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil noImposed 1

Imposed 2


1.09 1.06 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.05 1.08 1.15 1.15 1.15 1.19 1.34 1.1 1.07 1.06 1.06 1.06 1.06 1.05 1.05 1.05 1.05 1.04 1.04 1.07 1.09 1.13 1.13 1.2 1.2 1.33 1.33 1.33 1.11 1.08 1.07 1.07 1.07 1.07 1.05 1.06 1.06 1.06 1.08 1.15 1.15 1.2 1.29 1.12 1.09 1.08 1.08 1.08 1.08 1.06 1.06 1.05 1.1 1.1 1.13 1.19 1.19 1.28 1.13 1.1 1.09 1.09 1.08 1.08 1.08 1.08 1.07 1.08 1.09 1.09 1.12 1.12 1.2 1.27 1.14 1.12 1.1 1.09 1.09 1.09 1.08 1.08 1.08 1.14 1.14 1.14 1.18 1.26 1.26 1.16 1.16 1.12 1.09 1.08 1.07 1.07 1.09 1.13 1.13 1.16 1.24 1.17 1.17 1.14 1.11 1.09 1.08 1.08 1.09 1.12 1.18 1.18 1.24 1.19 1.19 1.16 1.16 1.13 1.11 1.1 1.09 1.1 1.12 1.17 1.17 1.22 1.19 1.16 1.14 1.12 1.11 1.11 1.11 1.11 1.11 1.13 1.16 1.23

Γmin 1.04Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil noImposed 1

Imposed 2


1.08 1.04 1.04 .99 .99 .97 .95 .95 .95 1.05 1.24 1.67 1.04 1.04 1 .96 .95 .95 .93 .93 .93 .97 .97 1.05 1.2 1.2 1.55 1.01 .97 .95 .95 .94 .95 .98 1.02 1.18 1.46 .99 .99 .95 .95 .94 .93 .93 .95 .98 1.04 1.15 1.38 .98 .98 .96 .96 .94 .92 .94 .96 .96 .98 1.04 1.15 1.15 1.34 .96 .95 .95 .93 .93 .94 .94 .94 .94 .99 1.03 1.13 1.28 .97 .95 .95 .94 .94 .93 .93 .95 .95 .99 .99 1.03 1.03 1.11 1.25 .96 .94 .93 .93 .93 .95 1 1.04 1.11 1.24 .97 .95 .94 .93 .94 .94 .96 1 1 1 1.03 1.09 1.2 .98 .96 .95 .94 .95 .97 .97 .98 1.04 1.11 1.11 1.2 1.2

Γmin .92Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.3Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.27Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil noImposed 1

Imposed 2


a

z

Γa-z 1.24Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL




Subsoil

Unit 4





Soil no 1 2

γ 21.1 20.6

Γs1 1 1

c 0 6

Γc 1 1

φ 27.4 30

Γφ 1 1

Units : kN meters and degreesCalculation method : Bishop

1.15 1.04 1.05 1.06 1.07 1.08 1.08 1.08 1.09 1.09 1.05 1.06 1.07 1.08 1.08 1.08 1.09 1.09 1.04 1.04 1.07 1.08 1.08 1.08 1.09 1.09 1.04 1.04 1.05 1.05 1.08 1.08 1.09 1.09 1.04 1.04 1.05 1.05 1.06 1.06 1.09 1.09 1.04 1.04 1.05 1.05 1.06 1.06 1.07 1.07 1.04 1.04 1.05 1.05 1.06 1.06 1.07 1.07 1.07 1.08 1.05 1.05 1.06 1.06 1.07 1.07 1.07 1.08 1.04 1.04 1.06 1.06 1.07 1.07 1.07 1.08 1.04 1.04 1.05 1.05 1.07 1.07 1.07 1.08 1.04 1.04 1.05 1.05 1.05 1.06 1.07 1.08 1.04 1.04 1.05 1.05 1.05 1.06 1.06 1.06

Γmin 1.04Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL

Highthorn Surface MineOBM1 Founded on Old Opencast Backfill File : OBM1.tal Proj : 09059


Date : 05/07/2001 Time : 04:12:10

Copyright (c) TERRASOL

Overburden - Mainly clayfill

Old Opencast Backfill (Radar South)





Soil no 1 2

γ 21.1 20.6

Γs1 1 1

c 0 6

Γc 1 1

φ 27.4 30

Γφ 1 1


Γmin 1.1Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:14:56








Soil noImposed 1

Imposed 2

γ 21.1 20.6

Γs1 1 1

c 0 6

Γc 1 1

φ 27.4 30

Γφ 1 1

Units : kN meters and degreesCalculation method : BishopConditions concerning soils 1 and 2 are verified simultaneously.

1.5 1.47 1.45 1.46 1.47 1.53 1.64 1.85 2.29 3.21 1.5 1.46 1.44 1.44 1.46 1.5 1.59 1.77 2.13 3.02 3.02 1.5 1.46 1.43 1.43 1.45 1.48 1.57 1.72 2.03 2.76 1.5 1.46 1.43 1.42 1.43 1.47 1.55 1.66 1.92 2.52 1.51 1.45 1.43 1.41 1.42 1.46 1.51 1.63 1.85 2.31 1.5 1.46 1.43 1.41 1.41 1.43 1.49 1.6 1.77 2.17 1.51 1.46 1.43 1.41 1.41 1.42 1.48 1.56 1.72 2.03 1.52 1.47 1.43 1.42 1.4 1.41 1.45 1.53 1.68 1.94 1.52 1.48 1.44 1.42 1.41 1.41 1.44 1.51 1.62 1.84 1.53 1.49 1.45 1.42 1.41 1.41 1.43 1.48 1.59 1.78

Γmin 1.4Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:10:47








Soil noImposed 1

Imposed 2

γ 21.1 20.6

Γs1 1 1

c 0 6

Γc 1 1

φ 27.4 30

Γφ 1 1

ru 0 .2


1.39 1.37 1.36 1.37 1.39 1.45 1.56 1.76 2.19 2.8 2.8 1.39 1.36 1.35 1.35 1.38 1.43 1.52 1.7 2.04 2.68 2.68 1.39 1.36 1.34 1.35 1.37 1.41 1.5 1.65 1.94 2.55 2.55 1.4 1.36 1.34 1.34 1.36 1.4 1.48 1.6 1.84 2.41 1.4 1.37 1.34 1.34 1.35 1.39 1.45 1.57 1.78 2.21 1.41 1.37 1.35 1.34 1.34 1.37 1.43 1.54 1.7 2.08 1.42 1.38 1.35 1.34 1.34 1.36 1.42 1.5 1.66 1.96 1.42 1.39 1.36 1.34 1.34 1.35 1.4 1.48 1.62 1.87 1.43 1.4 1.37 1.35 1.34 1.35 1.38 1.46 1.57 1.78 1.44 1.4 1.38 1.35 1.35 1.35 1.37 1.43 1.54 1.72

Γmin 1.34Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:09:43








Soil noImposed 1

Imposed 2

γ 21.1 20.6

Γs1 1 1

c 0 6

Γc 1 1

φ 27.4 30

Γφ 1 1

ru 0 .4


1.28 1.28 1.26 1.26 1.26 1.27 1.31 1.37 1.48 1.68 2.04 2.04 2.33 2.33 1.28 1.26 1.26 1.26 1.27 1.3 1.36 1.45 1.62 1.95 2.25 2.25 2.25 1.28 1.26 1.25 1.26 1.29 1.34 1.43 1.58 1.86 2.17 2.17 1.29 1.29 1.26 1.25 1.26 1.29 1.33 1.41 1.54 1.77 2.1 2.1 1.3 1.3 1.28 1.26 1.26 1.28 1.32 1.39 1.5 1.7 2.04 2.04 1.31 1.31 1.29 1.29 1.26 1.26 1.27 1.31 1.37 1.47 1.64 1.97 1.32 1.32 1.29 1.28 1.26 1.27 1.3 1.36 1.45 1.6 1.88 1.32 1.3 1.28 1.27 1.27 1.29 1.34 1.42 1.56 1.8 1.33 1.31 1.29 1.28 1.28 1.29 1.33 1.4 1.52 1.72 1.34 1.32 1.32 1.3 1.29 1.28 1.29 1.32 1.39 1.49 1.67

Γmin 1.25Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:08:26








Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1


1.34 1.29 1.26 1.24 1.23 1.24 1.26 1.31 1.42 1.7 1.34 1.3 1.26 1.24 1.23 1.23 1.25 1.3 1.39 1.61 1.35 1.3 1.26 1.24 1.22 1.23 1.24 1.28 1.36 1.53 1.36 1.31 1.27 1.24 1.22 1.22 1.24 1.27 1.34 1.48 1.37 1.32 1.28 1.25 1.22 1.22 1.23 1.26 1.32 1.43 1.37 1.33 1.29 1.25 1.23 1.22 1.23 1.25 1.3 1.4 1.38 1.34 1.3 1.26 1.23 1.22 1.22 1.24 1.28 1.37 1.39 1.35 1.31 1.27 1.24 1.22 1.22 1.23 1.27 1.34 1.4 1.36 1.32 1.28 1.25 1.23 1.22 1.23 1.26 1.32 1.41 1.37 1.33 1.29 1.26 1.24 1.22 1.22 1.25 1.3

Γmin 1.22Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL

Highthorn Surface MineOBM1 Founded on Unit 2 File : OBM1.tal Proj : 09059


Date : 05/07/2001 Time : 04:20:06



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1

ru 0 .2


1.24 1.2 1.18 1.16 1.16 1.17 1.19 1.24 1.34 1.58 1.25 1.25 1.21 1.18 1.16 1.16 1.17 1.18 1.23 1.32 1.5 1.26 1.26 1.22 1.19 1.17 1.16 1.16 1.19 1.22 1.29 1.44 1.27 1.27 1.23 1.19 1.17 1.16 1.17 1.18 1.21 1.28 1.39 1.28 1.28 1.24 1.21 1.18 1.16 1.16 1.17 1.21 1.26 1.36 1.29 1.29 1.25 1.22 1.19 1.17 1.16 1.18 1.2 1.24 1.33 1.29 1.26 1.26 1.23 1.19 1.18 1.17 1.17 1.19 1.24 1.31 1.3 1.27 1.24 1.21 1.18 1.17 1.17 1.19 1.22 1.28 1.31 1.28 1.25 1.22 1.19 1.18 1.17 1.19 1.21 1.27 1.32 1.3 1.3 1.26 1.23 1.21 1.19 1.18 1.18 1.21 1.25

Γmin 1.16Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:20:53



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1

ru 0 .4


1.24 1.19 1.19 1.13 1.11 1.08 1.07 1.07 1.07 1.1 1.25 1.69 1.2 1.15 1.13 1.13 1.13 1.09 1.09 1.06 1.05 1.06 1.1 1.2 1.53 1.17 1.15 1.15 1.15 1.1 1.07 1.07 1.07 1.06 1.07 1.11 1.18 1.43 1.15 1.15 1.12 1.12 1.12 1.09 1.07 1.06 1.06 1.05 1.06 1.06 1.09 1.17 1.36 1.14 1.1 1.09 1.09 1.06 1.07 1.07 1.06 1.08 1.08 1.1 1.17 1.31 1.13 1.13 1.09 1.07 1.07 1.06 1.06 1.05 1.06 1.09 1.15 1.28 1.12 1.09 1.09 1.07 1.06 1.05 1.05 1.07 1.08 1.1 1.15 1.26 1.12 1.09 1.07 1.06 1.06 1.06 1.06 1.07 1.09 1.13 1.22 1.14 1.14 1.14 1.14 1.09 1.07 1.06 1.06 1.06 1.06 1.05 1.08 1.11 1.11 1.14 1.21 1.14 1.14 1.14 1.1 1.07 1.06 1.06 1.06 1.06 1.07 1.07 1.08 1.08 1.1 1.1 1.13 1.19

Γmin 1.05Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:24:03



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1

ru 0 .5


1.08 1.04 1 1 1 .97 .97 .99 1.03 1.03 1.17 1.52 1.52 1.05 1.02 1.02 1 .98 .98 .96 .96 .98 1.03 1.13 1.42 1.42 1.02 1.01 .98 .96 .96 .97 .97 .97 .99 1.04 1.12 1.33 1.01 .99 .97 .97 .97 .97 .96 .96 .96 .96 .98 1.02 1.12 1.12 1.28 1.01 1.01 .98 .97 .96 .96 .98 .98 .98 .98 .98 1 1 1.03 1.12 1.12 1.24 1.01 1.01 .98 .98 .97 .97 .97 .96 .96 .99 1.04 1.09 1.22 1.22 1 1 .97 .97 .97 .97 .97 .97 .97 .96 .96 .98 1 1 1.03 1.03 1.09 1.21 1.21 1 1 .98 .97 .97 .97 .97 .97 .97 .98 .98 .98 .98 .98 .99 1.05 1.05 1.05 1.09 1.17 1.17 1 .99 .99 .97 .97 .97 .97 .97 .97 .97 .97 1.01 1.01 1.03 1.09 1.09 1.17 1.17 1.01 .99 .97 .97 .97 .97 .97 .99 1 1 1.02 1.09 1.15

Γmin .96Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:23:15



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1


1.37 1.37 1.32 1.32 1.27 1.27 1.24 1.21 1.2 1.19 1.2 1.24 1.34 1.36 1.31 1.27 1.23 1.21 1.19 1.19 1.2 1.23 1.32 1.37 1.37 1.31 1.27 1.23 1.2 1.19 1.19 1.19 1.22 1.29 1.37 1.37 1.31 1.27 1.23 1.2 1.19 1.18 1.2 1.22 1.27 1.37 1.32 1.32 1.27 1.23 1.2 1.19 1.18 1.19 1.21 1.26 1.38 1.38 1.33 1.33 1.28 1.24 1.2 1.19 1.18 1.18 1.2 1.25 1.38 1.38 1.33 1.28 1.25 1.21 1.19 1.18 1.18 1.2 1.23 1.39 1.39 1.34 1.34 1.3 1.3 1.26 1.22 1.19 1.18 1.18 1.19 1.22 1.4 1.4 1.35 1.35 1.31 1.31 1.27 1.23 1.2 1.18 1.18 1.19 1.22 1.4 1.36 1.36 1.32 1.32 1.27 1.24 1.21 1.19 1.18 1.19 1.21

Γmin 1.18Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:35:49



Unit 4





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1

ru 0 .2


1.29 1.29 1.25 1.25 1.2 1.2 1.15 1.14 1.12 1.12 1.15 1.23 1.49 1.26 1.26 1.22 1.22 1.18 1.15 1.13 1.12 1.12 1.11 1.14 1.22 1.41 1.24 1.24 1.19 1.17 1.14 1.13 1.13 1.12 1.12 1.14 1.21 1.36 1.22 1.18 1.16 1.16 1.15 1.15 1.12 1.12 1.12 1.11 1.13 1.19 1.32 1.22 1.17 1.15 1.15 1.14 1.14 1.12 1.13 1.13 1.12 1.14 1.18 1.29 1.22 1.18 1.18 1.14 1.13 1.13 1.13 1.13 1.12 1.12 1.12 1.13 1.17 1.26 1.22 1.18 1.15 1.12 1.12 1.11 1.13 1.14 1.17 1.24 1.23 1.23 1.23 1.19 1.19 1.15 1.12 1.11 1.12 1.12 1.12 1.13 1.16 1.22 1.23 1.19 1.17 1.17 1.17 1.13 1.12 1.12 1.12 1.12 1.14 1.16 1.22 1.23 1.2 1.17 1.17 1.17 1.14 1.12 1.12 1.12 1.12 1.13 1.15 1.2Γmin 1.11

Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:37:07



Unit 4





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1

ru 0 .4


1.05 1.03 1 .97 .99 .99 .99 1 1.05 1.12 1.34 1.03 1.01 .98 .99 .99 .99 .97 .97 .99 1.03 1.12 1.28 1.03 1.03 1 .99 .98 .98 .99 .99 1.01 1.01 1.04 1.12 1.12 1.25 1.02 .99 .99 .99 .99 .99 .99 .99 .98 .98 .98 1 1.05 1.1 1.1 1.22 1.02 1.02 .99 .98 .98 .98 .97 .97 1 1.01 1.01 1.04 1.1 1.21 1.02 1.02 1 .98 .98 .98 .98 .99 .99 .99 1 1.06 1.06 1.06 1.1 1.18 1.18 1.02 1 .99 .99 .99 .98 .98 .98 .98 1.02 1.05 1.05 1.09 1.17 1.03 1.01 1.01 .99 .99 .99 .99 .99 .99 .99 .99 1 1.01 1.03 1.09 1.15 1.04 1.04 1.02 1 .99 .99 .99 .99 1 1.01 1.01 1.05 1.09 1.09 1.15 1.04 1.02 1.01 1 1 1 1 1 1 1 1.02 1.04 1.07 1.13Γmin .97

Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:38:02



Unit 4





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1

ru 0 .5


1.08 1.03 .99 .99 .94 .94 .92 .9 .9 .9 .89 .98 1.14 1.03 .99 .99 .95 .92 .9 .9 .87 .87 .9 .98 1.1 .99 .96 .93 .93 .9 .9 .9 .89 .89 .89 .89 .92 .92 .95 1.09 .96 .93 .91 .91 .9 .88 .87 .87 .89 .9 .96 1.07 1.07 .95 .92 .91 .91 .89 .89 .87 .88 .89 .91 .96 1.06 .94 .94 .91 .89 .88 .87 .88 .88 .88 .88 .91 .95 1.04 .93 .91 .89 .88 .87 .89 .89 .92 .92 .96 .96 1.03 .93 .93 .93 .91 .91 .88 .88 .88 .88 .89 .89 .93 .93 .97 .97 1.02 .92 .91 .91 .88 .88 .88 .88 .88 .88 .9 .93 .93 .96 .96 1.01 .93 .93 .93 .91 .91 .9 .88 .88 .89 .9 .91 .97 1.03 1.03

Γmin .87Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 06:39:17



Unit 4





Soil no 1 2

γ 19.62 20.6

Γs1 1 1

c 19 6

Γc 1 1

φ 36 30

Γφ 1 1


2.55 2.5 2.37 2.38 2.38 2.39 2.47 2.57 2.74 2.98 3.35 3.35 2.61 2.45 2.33 2.34 2.34 2.38 2.43 2.53 2.71 2.94 2.94 3.27 2.6 2.42 2.3 2.31 2.35 2.39 2.51 2.66 2.66 2.86 3.16 2.58 2.38 2.31 2.29 2.32 2.39 2.47 2.6 2.83 2.83 3.1 2.54 2.37 2.3 2.27 2.3 2.36 2.44 2.59 2.59 2.77 3.01 2.53 2.48 2.32 2.27 2.28 2.33 2.43 2.55 2.55 2.71 2.95 2.86 2.86 2.47 2.32 2.29 2.28 2.32 2.4 2.51 2.69 2.69 2.9 2.85 2.85 2.47 2.32 2.29 2.27 2.31 2.38 2.5 2.5 2.64 2.85 2.85 2.85 2.47 2.32 2.29 2.3 2.3 2.36 2.47 2.59 2.79 2.85 2.85 2.47 2.41 2.31 2.3 2.3 2.35 2.45 2.59 2.59 2.75

Γmin 2.27Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:48:04


Overburden - Moderately compacted weak rockfill






Soil noImposed 1

Imposed 2

γ 19.62 20.6

Γs1 1 1

c 19 6

Γc 1 1

φ 36 30

Γφ 1 1


2.97 2.97 2.83 2.83 2.69 2.59 2.51 2.43 2.41 2.4 2.44 2.49 2.9 2.9 2.77 2.77 2.67 2.67 2.67 2.55 2.55 2.45 2.39 2.37 2.37 2.38 2.38 2.39 2.47 2.85 2.74 2.74 2.62 2.62 2.51 2.51 2.42 2.36 2.33 2.34 2.34 2.38 2.43 2.81 2.69 2.59 2.59 2.59 2.48 2.48 2.41 2.34 2.3 2.31 2.35 2.39 2.78 2.78 2.78 2.78 2.66 2.55 2.46 2.4 2.4 2.33 2.3 2.29 2.32 2.39 2.74 2.74 2.63 2.53 2.45 2.39 2.39 2.33 2.29 2.27 2.3 2.36 2.71 2.61 2.61 2.51 2.44 2.38 2.33 2.29 2.27 2.28 2.33 2.69 2.69 2.59 2.5 2.43 2.38 2.38 2.33 2.3 2.28 2.28 2.32 2.67 2.67 2.58 2.51 2.43 2.43 2.38 2.38 2.38 2.33 2.3 2.28 2.27 2.31 2.65 2.57 2.51 2.51 2.51 2.43 2.43 2.38 2.38 2.33 2.31 2.29 2.29 2.3 2.3 2.3

Γmin 2.27Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:52:10








Soil noImposed 1

Imposed 2

γ 19.62 20.6

Γs1 1 1

c 19 6

Γc 1 1

φ 36 30

Γφ 1 1

ru 0 .2


2.54 2.54 2.43 2.43 2.31 2.23 2.17 2.12 2.12 2.13 2.17 2.23 2.48 2.38 2.38 2.31 2.31 2.21 2.14 2.12 2.12 2.09 2.11 2.14 2.22 2.44 2.36 2.36 2.36 2.28 2.28 2.18 2.12 2.09 2.07 2.08 2.13 2.18 2.41 2.41 2.41 2.33 2.33 2.25 2.25 2.16 2.11 2.08 2.08 2.05 2.06 2.1 2.16 2.38 2.38 2.3 2.3 2.23 2.16 2.12 2.12 2.07 2.05 2.05 2.09 2.15 2.35 2.28 2.22 2.22 2.22 2.15 2.11 2.11 2.07 2.05 2.05 2.08 2.13 2.34 2.34 2.34 2.27 2.27 2.27 2.21 2.21 2.21 2.15 2.11 2.11 2.07 2.05 2.04 2.07 2.12 2.32 2.32 2.32 2.26 2.26 2.26 2.2 2.2 2.14 2.11 2.08 2.07 2.05 2.07 2.07 2.11 2.31 2.31 2.31 2.25 2.25 2.2 2.2 2.14 2.11 2.09 2.07 2.06 2.07 2.11 2.3 2.3 2.3 2.24 2.19 2.15 2.15 2.11 2.09 2.07 2.06 2.08 2.11 2.11

Γmin 2.04Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:53:02








Soil noImposed 1

Imposed 2

γ 19.62 20.6

Γs1 1 1

c 19 6

Γc 1 1

φ 36 30

Γφ 1 1

ru 0 .4


2.05 1.97 1.89 1.84 1.84 1.82 1.82 1.82 1.82 1.8 1.8 1.8 1.84 1.84 1.84 1.85 1.9 2.01 1.94 1.9 1.9 1.9 1.82 1.82 1.8 1.8 1.8 1.8 1.78 1.78 1.81 1.82 1.91 1.91 1.98 1.92 1.92 1.88 1.88 1.81 1.81 1.79 1.79 1.79 1.79 1.77 1.77 1.79 1.81 1.88 1.88 1.88 1.95 1.9 1.9 1.87 1.87 1.87 1.8 1.8 1.78 1.78 1.78 1.78 1.77 1.77 1.76 1.78 1.79 1.85 1.93 1.89 1.86 1.86 1.86 1.84 1.84 1.84 1.84 1.84 1.77 1.77 1.76 1.76 1.78 1.81 1.84 1.92 1.88 1.85 1.85 1.85 1.83 1.83 1.83 1.83 1.77 1.77 1.76 1.76 1.76 1.77 1.81 1.83 1.91 1.87 1.84 1.84 1.83 1.83 1.83 1.83 1.83 1.77 1.77 1.76 1.76 1.77 1.77 1.77 1.81 1.81 1.86 1.91 1.86 1.84 1.84 1.82 1.82 1.82 1.82 1.82 1.82 1.82 1.82 1.77 1.77 1.77 1.77 1.77 1.78 1.81 1.81 1.85 1.9 1.86 1.84 1.84 1.82 1.82 1.82 1.82 1.82 1.82 1.82 1.77 1.77 1.77 1.79 1.79 1.81 1.85 1.9 1.86 1.84 1.84 1.82 1.82 1.82 1.82 1.82 1.77 1.77 1.78 1.78 1.78 1.78 1.79 1.82 1.85

Γmin 1.76Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL


Study made by : Figure :.

Date : 05/07/2001 Time : 04:53:52








Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 19 0

Γc 1 1

φ 36 26.7

Γφ 1 1


2.56 2.44 2.33 2.33 2.22 2.16 2.09 2.07 2.05 2.08 2.08 2.11 2.11 2.51 2.39 2.31 2.21 2.13 2.13 2.07 2.04 2.04 2.04 2.05 2.12 2.12 2.12 2.48 2.48 2.38 2.38 2.28 2.19 2.19 2.1 2.05 2.02 2.02 2.02 2.02 2.05 2.08 2.08 2.44 2.34 2.25 2.16 2.09 2.04 2.01 2.01 2.01 2.01 2.01 2.03 2.03 2.05 2.41 2.32 2.23 2.15 2.09 2.03 2 2 2 2 2.02 2.02 2.02 2.07 2.07 2.39 2.39 2.3 2.3 2.21 2.14 2.09 2.05 2.05 2 1.99 1.99 2.01 2.01 2.01 2.05 2.05 2.36 2.28 2.2 2.14 2.09 2.05 2.05 2 1.99 1.99 1.99 2 2 2.04 2.04 2.04 2.35 2.35 2.27 2.27 2.19 2.13 2.09 2.05 2.04 2.04 2.04 1.99 2 2 2.03 2.03 2.33 2.26 2.2 2.13 2.09 2.06 2.04 2.04 2.04 2 2 2 2.03 2.03 2.03 2.32 2.25 2.2 2.13 2.09 2.06 2.04 2 2.01 2.03 2.03 2.03

Γmin 1.99Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:57:14



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 19 0

Γc 1 1

φ 36 26.7

Γφ 1 1

ru 0 .2


2.16 2.07 1.96 1.9 1.9 1.84 1.8 1.79 1.79 1.8 1.85 2.12 2.04 1.98 1.98 1.98 1.88 1.88 1.82 1.8 1.77 1.78 1.79 1.85 2.09 2.09 2.02 2.02 2.02 1.96 1.96 1.96 1.86 1.81 1.78 1.76 1.76 1.8 1.8 1.82 2.06 2.06 2 2 2 1.94 1.94 1.94 1.85 1.8 1.78 1.75 1.76 1.78 1.81 2.04 2.04 1.98 1.98 1.93 1.93 1.93 1.88 1.88 1.81 1.78 1.77 1.75 1.77 1.82 1.82 2.02 2.02 1.97 1.97 1.97 1.97 1.92 1.92 1.92 1.87 1.81 1.77 1.77 1.75 1.77 1.81 1.81 2.01 2.01 1.96 1.96 1.96 1.96 1.91 1.87 1.87 1.81 1.78 1.77 1.75 1.77 1.81 2 2 1.95 1.95 1.91 1.91 1.91 1.87 1.87 1.84 1.84 1.79 1.77 1.78 1.77 1.81 1.99 1.95 1.95 1.95 1.95 1.91 1.91 1.91 1.87 1.87 1.84 1.8 1.78 1.78 1.78 1.81 1.99 1.99 1.95 1.95 1.95 1.95 1.91 1.91 1.91 1.88 1.88 1.88 1.88 1.85 1.85 1.8 1.78 1.79 1.8 1.81

Γmin 1.75Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:58:02



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 19 0

Γc 1 1

φ 36 26.7

Γφ 1 1

ru 0 .4


1.71 1.64 1.57 1.52 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.52 1.52 1.51 1.51 1.51 1.51 1.53 1.68 1.62 1.58 1.51 1.49 1.49 1.49 1.49 1.49 1.49 1.49 1.49 1.49 1.5 1.49 1.49 1.56 1.56 1.56 1.56 1.66 1.6 1.57 1.51 1.49 1.49 1.48 1.48 1.48 1.48 1.5 1.5 1.5 1.48 1.53 1.64 1.59 1.56 1.5 1.48 1.48 1.48 1.48 1.48 1.48 1.48 1.5 1.5 1.5 1.5 1.47 1.52 1.52 1.63 1.59 1.55 1.54 1.54 1.48 1.48 1.48 1.48 1.49 1.49 1.49 1.49 1.49 1.5 1.5 1.5 1.5 1.52 1.51 1.62 1.58 1.55 1.53 1.49 1.49 1.48 1.48 1.49 1.49 1.49 1.49 1.49 1.5 1.5 1.5 1.5 1.5 1.52 1.51 1.51 1.61 1.58 1.55 1.55 1.53 1.49 1.48 1.48 1.49 1.49 1.49 1.49 1.5 1.53 1.53 1.53 1.53 1.53 1.53 1.53 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.63 1.63 1.58 1.55 1.53 1.53 1.53 1.48 1.49 1.49 1.5 1.53 1.53 1.53 1.53 1.53 1.53 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.62 1.62 1.58 1.55 1.53 1.53 1.53 1.49 1.49 1.51 1.51 1.51 1.53 1.57 1.57 1.57 1.57 1.57 1.57 1.57 1.62 1.62 1.57 1.56 1.54 1.53 1.5 1.5 1.5 1.51 1.53 1.57 1.57 1.57

Γmin 1.47Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 04:59:56



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 19 0

Γc 1 1

φ 36 26.7

Γφ 1 1

ru 0 .5


1.48 1.41 1.37 1.37 1.32 1.3 1.3 1.3 1.33 1.32 1.32 1.36 1.46 1.39 1.36 1.31 1.3 1.29 1.3 1.32 1.31 1.36 1.44 1.38 1.35 1.33 1.33 1.3 1.29 1.3 1.32 1.32 1.31 1.31 1.35 1.43 1.37 1.35 1.32 1.3 1.29 1.3 1.31 1.31 1.34 1.42 1.39 1.35 1.33 1.3 1.3 1.3 1.32 1.34 1.35 1.35 1.41 1.38 1.34 1.33 1.31 1.3 1.3 1.32 1.34 1.34 1.41 1.38 1.34 1.33 1.32 1.3 1.3 1.32 1.34 1.37 1.42 1.38 1.36 1.33 1.33 1.31 1.32 1.32 1.35 1.37 1.41 1.38 1.36 1.34 1.33 1.33 1.32 1.32 1.35 1.37 1.41 1.38 1.37 1.36 1.34 1.33 1.33 1.34 1.35 1.39

Γmin 1.29Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:00:43



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 19 0

Γc 1 1

φ 36 23.4

Γφ 1 1


2.28 2.28 2.18 2.07 2.07 1.99 1.93 1.88 1.87 1.86 1.88 1.92 2.23 2.14 2.08 2.08 2.08 1.97 1.91 1.88 1.84 1.85 1.87 1.87 1.92 2.2 2.2 2.12 2.12 2.05 2.05 2.05 1.95 1.9 1.87 1.83 1.84 1.87 1.89 2.17 2.17 2.1 2.1 2.1 2.03 2.03 1.94 1.89 1.86 1.82 1.83 1.85 1.89 1.89 2.15 2.15 2.15 2.08 2.08 2.08 2.02 2.02 2.02 1.96 1.96 1.89 1.85 1.84 1.84 1.82 1.84 1.89 2.13 2.13 2.13 2.07 2.07 2.07 2.07 2.01 2.01 2.01 2.01 1.95 1.89 1.85 1.84 1.84 1.82 1.84 1.88 2.11 2.11 2.05 2 2 2 1.95 1.95 1.89 1.85 1.84 1.84 1.82 1.84 1.87 2.1 2.1 2.05 2.05 2.05 2.05 1.99 1.95 1.95 1.91 1.87 1.85 1.84 1.84 1.87 2.09 2.09 2.04 2.04 2.04 1.99 1.95 1.95 1.91 1.88 1.85 1.85 1.85 1.84 1.87 2.09 2.09 2.09 2.04 2.04 2.04 2.04 1.99 1.99 1.95 1.95 1.92 1.88 1.86 1.86 1.86 1.87 1.87 1.87

Γmin 1.82Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:02:38



Unit 4





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 19 0

Γc 1 1

φ 36 23.4

Γφ 1 1

ru 0 .2


1.9 1.82 1.74 1.69 1.69 1.66 1.66 1.66 1.63 1.63 1.62 1.64 1.64 1.64 1.66 1.87 1.8 1.8 1.76 1.76 1.76 1.67 1.65 1.65 1.65 1.65 1.62 1.61 1.62 1.62 1.68 1.84 1.78 1.78 1.74 1.74 1.66 1.64 1.64 1.64 1.64 1.61 1.6 1.61 1.61 1.66 1.66 1.82 1.77 1.77 1.73 1.73 1.73 1.65 1.63 1.63 1.63 1.61 1.6 1.61 1.6 1.64 1.8 1.76 1.76 1.72 1.72 1.7 1.7 1.7 1.7 1.7 1.63 1.63 1.63 1.61 1.61 1.61 1.61 1.63 1.64 1.79 1.75 1.72 1.72 1.72 1.69 1.69 1.63 1.63 1.61 1.61 1.61 1.63 1.64 1.78 1.74 1.71 1.71 1.69 1.69 1.69 1.63 1.63 1.62 1.62 1.62 1.62 1.61 1.61 1.63 1.67 1.78 1.74 1.71 1.69 1.69 1.69 1.68 1.68 1.68 1.68 1.68 1.62 1.62 1.62 1.62 1.62 1.63 1.67 1.78 1.74 1.74 1.71 1.71 1.69 1.69 1.69 1.68 1.68 1.68 1.68 1.63 1.63 1.62 1.63 1.64 1.67 1.78 1.73 1.71 1.69 1.69 1.69 1.69 1.69 1.69 1.63 1.63 1.63 1.63 1.63 1.64 1.64 1.65 1.67

Γmin 1.6Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:03:31



Unit 4





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 19 0

Γc 1 1

φ 36 23.4

Γφ 1 1

ru 0 .4


1.51 1.44 1.4 1.4 1.35 1.32 1.32 1.33 1.33 1.36 1.36 1.36 1.34 1.38 1.49 1.49 1.42 1.39 1.34 1.33 1.32 1.33 1.33 1.35 1.35 1.34 1.34 1.38 1.47 1.41 1.38 1.35 1.35 1.32 1.31 1.32 1.34 1.33 1.33 1.37 1.46 1.4 1.38 1.35 1.32 1.31 1.32 1.34 1.34 1.33 1.36 1.45 1.41 1.37 1.36 1.32 1.32 1.32 1.34 1.36 1.36 1.44 1.41 1.37 1.36 1.34 1.32 1.32 1.34 1.36 1.36 1.44 1.41 1.37 1.36 1.34 1.33 1.32 1.34 1.36 1.4 1.44 1.41 1.39 1.36 1.36 1.33 1.34 1.34 1.37 1.39 1.44 1.41 1.39 1.36 1.36 1.35 1.34 1.34 1.37 1.39 1.44 1.41 1.39 1.38 1.36 1.36 1.35 1.36 1.37 1.41

Γmin 1.31Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:04:13



Unit 4





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 19 0

Γc 1 1

φ 36 23.4

Γφ 1 1

ru 0 .5


1.33 1.27 1.23 1.19 1.16 1.15 1.15 1.15 1.18 1.22 1.32 1.26 1.21 1.18 1.18 1.15 1.15 1.15 1.15 1.19 1.21 1.31 1.24 1.21 1.17 1.17 1.14 1.14 1.14 1.17 1.17 1.23 1.23 1.29 1.29 1.23 1.2 1.17 1.17 1.16 1.16 1.14 1.15 1.16 1.18 1.21 1.28 1.28 1.22 1.2 1.16 1.16 1.16 1.14 1.15 1.16 1.17 1.2 1.27 1.27 1.21 1.19 1.18 1.16 1.16 1.14 1.15 1.16 1.19 1.19 1.2 1.26 1.24 1.24 1.19 1.18 1.16 1.16 1.16 1.16 1.18 1.19 1.21 1.26 1.26 1.24 1.24 1.19 1.18 1.18 1.17 1.17 1.16 1.18 1.19 1.21 1.26 1.26 1.23 1.19 1.18 1.18 1.17 1.17 1.16 1.18 1.19 1.22 1.26 1.24 1.24 1.22 1.19 1.19 1.17 1.17 1.18 1.18 1.21 1.22Γmin 1.14

Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:05:28



Unit 4





Soil no 1 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1


1.15 1.15 1.15 1.04 1.05 1.06 1.07 1.08 1.08 1.08 1.15 1.04 1.05 1.06 1.07 1.08 1.08 1.08 1.09 1.09 1.05 1.06 1.07 1.08 1.08 1.08 1.09 1.09 1.04 1.04 1.07 1.08 1.08 1.08 1.09 1.09 1.04 1.04 1.05 1.05 1.08 1.08 1.09 1.09 1.04 1.04 1.05 1.05 1.06 1.06 1.09 1.09 1.04 1.04 1.05 1.05 1.06 1.06 1.07 1.07 1.04 1.04 1.05 1.05 1.06 1.06 1.07 1.07 1.07 1.08 1.05 1.05 1.06 1.06 1.07 1.07 1.07 1.08 1.04 1.04 1.06 1.06 1.07 1.07 1.07 1.08 1.04 1.04 1.05 1.05 1.07 1.07 1.07 1.08 1.04 1.04 1.05 1.05 1.05 1.06

Γmin 1.04Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:38:58



Unit 2





Soil no 1 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1


Γmin 1.11Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:43:06



Unit 2





Soil no 1 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1


Γmin 1.22Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:43:51



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1


1.44 1.37 1.32 1.29 1.26 1.26 1.27 1.32 1.45 1.81 1.44 1.37 1.32 1.28 1.26 1.25 1.26 1.31 1.41 1.68 1.45 1.38 1.32 1.27 1.25 1.25 1.25 1.29 1.38 1.59 1.46 1.39 1.32 1.28 1.25 1.24 1.25 1.28 1.35 1.52 1.47 1.4 1.33 1.28 1.25 1.24 1.24 1.27 1.33 1.47 1.49 1.41 1.35 1.29 1.25 1.23 1.24 1.26 1.31 1.42 1.51 1.43 1.36 1.3 1.26 1.23 1.23 1.25 1.3 1.39 1.52 1.44 1.38 1.32 1.27 1.24 1.23 1.24 1.28 1.36 1.54 1.46 1.39 1.33 1.29 1.25 1.23 1.24 1.27 1.34 1.56 1.48 1.41 1.35 1.3 1.26 1.24 1.23 1.26 1.32

Γmin 1.23Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:37:56



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1

ru 0 .2


1.32 1.32 1.27 1.27 1.21 1.21 1.19 1.18 1.17 1.19 1.24 1.35 1.65 1.32 1.27 1.27 1.22 1.22 1.18 1.17 1.17 1.18 1.22 1.32 1.56 1.34 1.34 1.34 1.28 1.28 1.22 1.18 1.17 1.17 1.18 1.22 1.3 1.47 1.35 1.35 1.29 1.29 1.23 1.18 1.16 1.17 1.17 1.2 1.27 1.42 1.36 1.36 1.29 1.25 1.25 1.19 1.17 1.16 1.18 1.2 1.26 1.38 1.37 1.31 1.31 1.26 1.26 1.21 1.17 1.16 1.17 1.19 1.24 1.34 1.39 1.32 1.28 1.28 1.22 1.18 1.16 1.17 1.18 1.23 1.32 1.41 1.41 1.34 1.34 1.29 1.29 1.23 1.2 1.17 1.17 1.19 1.22 1.29 1.43 1.43 1.43 1.36 1.31 1.31 1.25 1.21 1.18 1.17 1.18 1.21 1.28 1.44 1.39 1.39 1.33 1.33 1.27 1.23 1.2 1.18 1.18 1.21 1.26

Γmin 1.16Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:37:10



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1

ru 0 .4


1.29 1.21 1.21 1.14 1.11 1.08 1.08 1.05 1.13 1.33 2.06 2.77 1.23 1.18 1.18 1.12 1.12 1.08 1.06 1.06 1.06 1.12 1.27 1.86 2.52 1.19 1.19 1.13 1.11 1.08 1.07 1.07 1.07 1.1 1.25 1.69 2.3 2.3 1.15 1.13 1.13 1.13 1.09 1.09 1.06 1.05 1.06 1.1 1.2 1.53 2.13 1.14 1.14 1.1 1.07 1.07 1.07 1.06 1.07 1.11 1.18 1.43 1.99 1.99 1.13 1.08 1.07 1.06 1.06 1.05 1.06 1.06 1.09 1.17 1.36 1.84 1.12 1.12 1.08 1.06 1.07 1.07 1.06 1.08 1.08 1.1 1.17 1.31 1.75 1.75 1.12 1.08 1.06 1.06 1.06 1.05 1.06 1.09 1.15 1.28 1.61 1.13 1.13 1.09 1.06 1.06 1.05 1.07 1.08 1.1 1.15 1.26 1.5 1.14 1.14 1.1 1.07 1.07 1.05 1.06 1.07 1.09 1.13 1.22 1.43

Γmin 1.05Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:35:10



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.99

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 26.7

Γφ 1 1

ru 0 .5


1.12 1.05 1.02 .99 .98 .98 .98 1.05 1.22 1.79 1.79 2.35 2.35 1.07 1.03 .99 .97 .97 .96 .98 1.05 1.17 1.63 2.15 2.15 2.15 1.04 1 1 1 .97 .97 .99 1.03 1.03 1.17 1.52 1.52 1.96 1.01 1 .98 .98 .96 .96 .98 1.03 1.13 1.42 1.42 1.84 1 .98 .98 .96 .96 .97 .97 .97 .99 1.04 1.12 1.33 1.73 1.73 1 1 .98 .98 .98 .97 .97 .96 .96 .96 .96 .98 1.02 1.12 1.12 1.28 1.61 1 1 .98 .98 .98 .96 .98 .98 .98 .98 .98 1 1 1.03 1.12 1.12 1.24 1.54 1.01 1.01 1.01 .98 .98 .96 .96 .96 .99 1.04 1.09 1.22 1.22 1.47 1.01 .99 .99 .99 .97 .96 .98 1 1 1.03 1.03 1.09 1.21 1.21 1.41 1.41 1.02 1 1 1 .98 .97 .98 .99 1.05 1.05 1.05 1.09 1.17 1.17 1.36

Γmin .96Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:34:27



Unit 2





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1


1.53 1.53 1.44 1.36 1.3 1.25 1.21 1.2 1.19 1.2 1.24 1.53 1.45 1.45 1.37 1.31 1.25 1.21 1.19 1.19 1.2 1.23 1.55 1.55 1.46 1.38 1.32 1.26 1.21 1.19 1.19 1.19 1.22 1.56 1.56 1.48 1.48 1.39 1.33 1.27 1.22 1.19 1.18 1.2 1.22 1.57 1.49 1.49 1.41 1.34 1.29 1.23 1.2 1.18 1.19 1.21 1.59 1.59 1.59 1.5 1.43 1.36 1.3 1.24 1.21 1.18 1.18 1.2 1.6 1.6 1.6 1.52 1.52 1.45 1.45 1.37 1.32 1.26 1.22 1.19 1.18 1.2 1.62 1.62 1.62 1.54 1.54 1.46 1.39 1.33 1.28 1.23 1.2 1.19 1.19 1.63 1.63 1.55 1.48 1.41 1.35 1.29 1.25 1.21 1.19 1.19 1.65 1.65 1.57 1.57 1.5 1.5 1.43 1.37 1.31 1.26 1.23 1.2 1.19

Γmin 1.18Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:47:04



Unit 4





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1

ru 0 .2


1.45 1.37 1.31 1.24 1.2 1.16 1.13 1.12 1.15 1.31 1.41 1.41 1.41 1.33 1.33 1.27 1.27 1.22 1.22 1.17 1.14 1.12 1.11 1.15 1.26 1.38 1.38 1.38 1.3 1.3 1.25 1.25 1.2 1.2 1.15 1.14 1.12 1.12 1.15 1.23 1.36 1.36 1.28 1.23 1.23 1.23 1.18 1.18 1.15 1.13 1.12 1.12 1.11 1.14 1.22 1.35 1.35 1.28 1.28 1.21 1.17 1.14 1.13 1.13 1.12 1.12 1.14 1.21 1.35 1.35 1.35 1.27 1.21 1.17 1.14 1.12 1.12 1.12 1.11 1.13 1.19 1.35 1.35 1.35 1.27 1.21 1.17 1.13 1.12 1.13 1.13 1.12 1.14 1.18 1.35 1.28 1.22 1.18 1.13 1.11 1.12 1.12 1.12 1.13 1.17 1.36 1.36 1.36 1.29 1.23 1.19 1.14 1.12 1.11 1.13 1.14 1.17 1.37 1.37 1.37 1.3 1.25 1.2 1.15 1.13 1.13 1.12 1.12 1.12 1.13 1.16

Γmin 1.11Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:48:18



Unit 4





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1

ru 0 .4


1.17 1.11 1.06 1.02 1.01 .99 .98 1 1.04 1.04 1.18 1.13 1.09 1.09 1.03 1.02 1.02 .99 .97 .97 .99 1.05 1.05 1.13 1.12 1.06 1.02 1 1 .97 .99 .99 .99 1 1.05 1.12 1.11 1.05 1.02 1.02 .99 .99 .99 .99 .99 .97 .97 .99 1.03 1.12 1.1 1.06 1.06 1.02 1.02 1.02 .99 .98 .98 .99 .99 1.01 1.01 1.04 1.12 1.12 1.1 1.06 1.03 1.03 1.03 1 1 1 .98 .98 .98 1 1.05 1.1 1.1 1.11 1.07 1.03 1 .98 .98 1 1.01 1.01 1.04 1.1 1.12 1.07 1.04 1.01 .99 .98 .99 1 1.06 1.06 1.06 1.1 1.12 1.08 1.05 1.03 1.03 1.03 1 .99 .99 1.02 1.05 1.05 1.09 1.13 1.09 1.07 1.07 1.04 1.04 1.04 1.02 1.02 1 1 1 1.01 1.03 1.09

Γmin .97Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:49:03



Unit 4





Soil noImposed 1

Imposed 2

γ 21.1 20.41

Γs1 1 1

c 0 0

Γc 1 1

φ 27.4 23.4

Γφ 1 1

ru 0 .5


1 .97 .97 .93 .93 .9 .9 .9 .89 .89 .89 .89 .92 .92 .95 1.09 .99 .95 .9 .9 .88 .87 .87 .89 .9 .96 1.07 1.07 .98 .98 .93 .9 .88 .87 .88 .89 .91 .96 1.06 .98 .98 .93 .9 .88 .88 .88 .88 .88 .88 .91 .95 1.04 .98 .98 .93 .9 .89 .89 .88 .88 .89 .89 .92 .92 .96 .96 1.03 .98 .98 .94 .91 .89 .88 .89 .89 .89 .89 .93 .93 .97 .97 1.02 .98 .95 .92 .9 .89 .89 .91 .91 .91 .93 .93 .96 .96 1.01 .99 .96 .93 .91 .9 .9 .9 .91 .91 .91 .91 .91 .97 1.03 1.03 1 1 .97 .94 .92 .92 .91 .91 .92 .92 .92 .92 .94 .94 .94 .94 .96 .96 1.01 1.01 1.01 1.01 .98 .95 .95 .93 .93 .93 .93 .92 .92 .94 .94 .95 .95 1.01

Γmin .87Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:49:45



Unit 4





Soil no 1 2

γ 19.62 20.99

Γs1 1 1

c 20 0

Γc 1 1

φ 36 26.7

Γφ 1 1


2.77 2.41 2.21 2.09 2.07 2.1 2.1 2.13 2.13 2.19 2.19 2.35 2.54 2.71 2.39 2.3 2.09 2.06 2.06 2.07 2.13 2.13 2.2 2.2 2.3 2.47 3.25 3.25 2.54 2.29 2.09 2.06 2.06 2.06 2.06 2.1 2.16 2.3 2.44 3.24 3.24 2.58 2.29 2.1 2.06 2.06 2.05 2.09 2.09 2.17 2.17 2.26 2.4 3.24 3.24 2.59 2.27 2.11 2.07 2.07 2.05 2.08 2.08 2.15 2.15 2.15 2.22 2.38 3.26 3.26 2.6 2.29 2.12 2.08 2.06 2.08 2.14 2.14 2.23 2.35 3.27 2.58 2.49 2.23 2.1 2.08 2.08 2.13 2.13 2.22 2.22 2.22 2.31 3.3 3.3 3.3 3.17 3.17 3.17 2.5 2.25 2.12 2.09 2.1 2.13 2.2 2.32 2.32 2.32 3.32 3.32 3.19 3.19 3.19 2.52 2.27 2.14 2.11 2.11 2.14 2.2 2.2 2.3 2.3 3.35 3.35 3.21 2.54 2.29 2.16 2.13 2.13 2.15 2.2 2.2 2.29 2.29 Γmin 2.05

Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:58:06



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 20 0

Γc 1 1

φ 36 26.7

Γφ 1 1


2.39 2.27 2.21 2.17 2.2 2.2 2.2 2.22 2.22 2.29 2.45 2.45 2.7 3.13 2.3 2.22 2.15 2.15 2.15 2.14 2.17 2.17 2.29 2.29 2.43 2.65 3.04 2.26 2.17 2.12 2.12 2.1 2.1 2.1 2.1 2.17 2.17 2.17 2.24 2.24 2.36 2.57 2.9 2.23 2.15 2.15 2.09 2.07 2.1 2.1 2.13 2.13 2.19 2.19 2.35 2.54 2.84 2.22 2.14 2.09 2.09 2.09 2.06 2.06 2.07 2.13 2.13 2.2 2.2 2.3 2.47 2.74 2.22 2.14 2.09 2.09 2.09 2.06 2.06 2.06 2.06 2.1 2.16 2.3 2.44 2.7 2.23 2.15 2.15 2.09 2.06 2.06 2.05 2.09 2.09 2.17 2.17 2.26 2.4 2.62 2.23 2.16 2.16 2.11 2.11 2.11 2.07 2.07 2.05 2.08 2.08 2.15 2.15 2.15 2.22 2.38 2.59 2.24 2.18 2.18 2.12 2.12 2.08 2.08 2.06 2.08 2.14 2.14 2.23 2.35 2.53 2.26 2.19 2.14 2.14 2.14 2.1 2.1 2.08 2.08 2.13 2.13 2.22 2.22 2.22 2.31 2.49

Γmin 2.05Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:53:18



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 20 0

Γc 1 1

φ 36 26.7

Γφ 1 1

ru 0 .2


2 1.94 1.88 1.88 1.89 1.91 2 2.13 2.36 2.7 2.7 2.7 1.97 1.97 1.9 1.84 1.85 1.87 1.87 1.89 1.98 2.1 2.28 2.63 2.63 1.94 1.86 1.82 1.81 1.83 1.88 1.97 1.97 2.08 2.26 2.26 2.52 2.52 2.52 1.92 1.85 1.81 1.8 1.82 1.87 1.87 1.93 2.04 2.21 2.48 1.92 1.85 1.81 1.8 1.81 1.86 1.91 2.04 2.19 2.19 2.39 2.39 1.92 1.86 1.82 1.8 1.81 1.85 1.92 2.01 2.14 2.14 2.38 2.38 2.38 1.93 1.87 1.83 1.81 1.81 1.85 1.89 1.99 2.15 2.15 2.15 2.31 2.31 1.94 1.88 1.84 1.82 1.82 1.85 1.88 1.96 2.1 2.1 2.24 1.95 1.9 1.86 1.84 1.84 1.85 1.88 1.95 2.06 2.25 2.25 2.25 1.97 1.92 1.88 1.86 1.85 1.87 1.89 1.95 2.04 2.19

Γmin 1.8Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:54:10



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 20 0

Γc 1 1

φ 36 26.7

Γφ 1 1

ru 0 .4


1.58 1.54 1.52 1.57 1.57 1.57 1.57 1.56 1.56 1.57 1.7 1.7 1.7 1.8 1.8 1.8 1.95 2.17 1.6 1.6 1.6 1.55 1.52 1.53 1.53 1.52 1.6 1.6 1.65 1.74 1.74 1.74 1.89 2.11 1.59 1.59 1.55 1.55 1.55 1.52 1.52 1.51 1.56 1.56 1.56 1.56 1.57 1.57 1.57 1.57 1.61 1.75 1.87 2.04 1.59 1.59 1.55 1.55 1.52 1.51 1.51 1.54 1.54 1.64 1.64 1.64 1.64 1.71 1.71 1.83 2.01 1.6 1.6 1.6 1.6 1.56 1.56 1.56 1.53 1.53 1.52 1.5 1.54 1.61 1.61 1.72 1.72 1.81 1.96 1.6 1.6 1.57 1.57 1.57 1.54 1.5 1.5 1.54 1.6 1.69 1.69 1.78 1.95 1.61 1.58 1.58 1.58 1.55 1.5 1.51 1.54 1.58 1.67 1.67 1.78 1.78 1.78 1.91 1.91 1.63 1.63 1.63 1.63 1.63 1.6 1.6 1.6 1.6 1.6 1.52 1.51 1.52 1.55 1.58 1.66 1.66 1.76 1.76 1.76 1.88 1.64 1.64 1.64 1.64 1.61 1.61 1.61 1.61 1.61 1.54 1.53 1.54 1.56 1.59 1.65 1.75 1.75 1.75 1.75 1.86 1.86 1.65 1.65 1.65 1.63 1.63 1.63 1.63 1.63 1.63 1.55 1.54 1.55 1.57 1.6 1.65 1.74 1.74 1.74 1.74 1.84 1.84

Γmin 1.5Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:54:56



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.99

Γs1 1 1

c 20 0

Γc 1 1

φ 36 26.7

Γφ 1 1

ru 0 .5


1.49 1.43 1.39 1.37 1.37 1.37 1.37 1.38 1.4 1.4 1.4 1.53 1.53 1.53 1.63 1.63 1.8 1.47 1.42 1.42 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.36 1.4 1.42 1.48 1.48 1.58 1.73 1.43 1.37 1.33 1.31 1.36 1.36 1.39 1.39 1.48 1.57 1.71 1.42 1.38 1.38 1.38 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.35 1.36 1.36 1.36 1.36 1.36 1.34 1.4 1.45 1.53 1.69 1.41 1.38 1.38 1.38 1.36 1.36 1.36 1.36 1.35 1.35 1.35 1.35 1.35 1.36 1.36 1.36 1.36 1.36 1.36 1.39 1.39 1.39 1.39 1.39 1.39 1.37 1.43 1.53 1.65 1.41 1.38 1.38 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.36 1.32 1.36 1.36 1.43 1.51 1.62 1.42 1.42 1.39 1.39 1.39 1.37 1.37 1.37 1.36 1.36 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.33 1.33 1.36 1.36 1.42 1.42 1.42 1.5 1.6 1.42 1.39 1.38 1.38 1.38 1.37 1.37 1.32 1.33 1.37 1.37 1.37 1.42 1.42 1.42 1.49 1.49 1.58 1.58 1.43 1.4 1.39 1.39 1.39 1.38 1.38 1.33 1.33 1.34 1.37 1.37 1.37 1.42 1.42 1.42 1.42 1.48 1.56 1.44 1.41 1.4 1.4 1.34 1.34 1.35 1.38 1.38 1.38 1.42 1.42 1.48 1.48 1.55

Γmin 1.31Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 05:56:28



Unit 2





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 20 0

Γc 1 1

φ 36 23.4

Γφ 1 1


2.21 2.21 2.12 2.03 1.97 1.96 1.97 2 2.08 2.21 2.44 2.18 2.06 2.06 1.99 1.93 1.93 1.95 1.97 2.07 2.18 2.37 2.14 2.03 1.95 1.9 1.89 1.91 1.96 2.04 2.15 2.33 2.12 2.01 1.94 1.89 1.88 1.9 1.94 2 2.12 2.3 2.11 2.11 2.01 1.94 1.89 1.87 1.89 1.93 1.99 2.11 2.26 2.1 2.01 1.94 1.9 1.88 1.88 1.92 1.98 2.08 2.21 2.1 2.01 1.95 1.91 1.88 1.88 1.91 1.96 2.06 2.21 2.1 2.02 1.96 1.92 1.9 1.89 1.91 1.96 2.04 2.17 2.11 2.04 1.98 1.94 1.91 1.91 1.92 1.95 2.03 2.14 2.13 2.05 1.99 1.95 1.93 1.92 1.93 1.96 2.02 2.12

Γmin 1.87Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 06:00:16



Unit 4





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 20 0

Γc 1 1

φ 36 23.4

Γφ 1 1

ru 0 .2


1.84 1.76 1.71 1.69 1.69 1.69 1.71 1.71 1.71 1.7 1.71 1.82 1.94 2.13 2.13 2.13 1.84 1.84 1.84 1.76 1.76 1.7 1.66 1.67 1.67 1.67 1.72 1.79 1.89 2.05 1.82 1.82 1.75 1.75 1.75 1.68 1.65 1.64 1.68 1.68 1.7 1.76 1.9 1.9 2.04 2.04 1.81 1.81 1.74 1.74 1.68 1.65 1.64 1.66 1.67 1.77 1.77 1.85 1.98 1.81 1.81 1.81 1.74 1.74 1.68 1.65 1.64 1.64 1.68 1.74 1.74 1.88 1.88 1.88 1.88 1.88 1.88 1.98 1.98 1.81 1.81 1.75 1.75 1.75 1.69 1.66 1.65 1.65 1.64 1.67 1.73 1.83 1.83 1.93 1.93 1.82 1.82 1.82 1.76 1.76 1.76 1.71 1.71 1.67 1.64 1.65 1.68 1.71 1.8 1.94 1.94 1.94 1.83 1.83 1.83 1.83 1.77 1.77 1.77 1.72 1.67 1.65 1.66 1.68 1.71 1.78 1.9 1.84 1.84 1.84 1.78 1.78 1.74 1.74 1.69 1.66 1.67 1.69 1.71 1.77 1.88 1.88 1.85 1.85 1.85 1.8 1.8 1.8 1.75 1.7 1.68 1.68 1.7 1.72 1.77 1.86

Γmin 1.64Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 06:01:04



Unit 4





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 20 0

Γc 1 1

φ 36 23.4

Γφ 1 1

ru 0 .4


1.6 1.6 1.53 1.48 1.45 1.45 1.42 1.42 1.46 1.54 1.54 1.54 1.54 1.66 1.66 1.87 1.52 1.46 1.42 1.4 1.4 1.4 1.4 1.41 1.41 1.43 1.43 1.43 1.55 1.55 1.65 1.82 1.5 1.45 1.45 1.42 1.42 1.42 1.41 1.41 1.41 1.38 1.42 1.45 1.45 1.45 1.5 1.5 1.6 1.75 1.46 1.4 1.36 1.34 1.39 1.38 1.41 1.41 1.51 1.51 1.59 1.73 1.45 1.41 1.41 1.41 1.38 1.38 1.38 1.37 1.37 1.38 1.38 1.38 1.36 1.42 1.47 1.55 1.71 1.44 1.41 1.41 1.41 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.41 1.41 1.41 1.41 1.41 1.4 1.45 1.56 1.67 1.44 1.41 1.41 1.41 1.39 1.39 1.39 1.39 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.38 1.35 1.38 1.45 1.53 1.64 1.45 1.45 1.41 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.39 1.35 1.35 1.38 1.38 1.44 1.44 1.44 1.52 1.61 1.45 1.42 1.42 1.4 1.4 1.39 1.34 1.36 1.36 1.39 1.39 1.39 1.44 1.44 1.44 1.51 1.51 1.6 1.6 1.46 1.43 1.43 1.41 1.41 1.4 1.35 1.35 1.37 1.37 1.37 1.39 1.39 1.39 1.44 1.44 1.44 1.44 1.5 1.5 1.58

Γmin 1.34Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 06:04:30



Unit 4





Soil noImposed 1

Imposed 2

γ 19.62 20.41

Γs1 1 1

c 20 0

Γc 1 1

φ 36 23.4

Γφ 1 1

ru 0 .5


1.35 1.3 1.3 1.25 1.23 1.22 1.21 1.25 1.33 1.43 1.63 1.3 1.24 1.21 1.19 1.2 1.23 1.23 1.34 1.42 1.58 1.28 1.23 1.21 1.2 1.21 1.23 1.25 1.3 1.4 1.54 1.26 1.26 1.21 1.17 1.16 1.21 1.21 1.21 1.2 1.23 1.3 1.38 1.51 1.24 1.2 1.18 1.18 1.19 1.19 1.23 1.28 1.36 1.5 1.5 1.23 1.2 1.18 1.18 1.19 1.22 1.22 1.29 1.29 1.36 1.48 1.48 1.48 1.24 1.21 1.19 1.19 1.2 1.18 1.22 1.22 1.27 1.34 1.43 1.24 1.22 1.2 1.2 1.2 1.19 1.21 1.26 1.33 1.43 1.43 1.25 1.23 1.21 1.2 1.18 1.2 1.22 1.26 1.33 1.39 1.26 1.24 1.22 1.22 1.19 1.2 1.23 1.27 1.32 1.38

Γmin 1.16Γs3 1

Scale : 1/ 300

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 06:03:15



Unit 4







APPENDIX E

Slope Stability Analysis Results for Excavated Slopes


E1 DABGeot/09059GA/Final

STABILITY OF EXCAVATED SLOPES

E1. Superficial (Glacial and Fluvio-glacial) Deposits

The most likely potential failure mechanism in the superficial glacial and fluvio-glacial clays

is circular and the stability of the excavated slopes has therefore been assessed using Bishop’s

Simplified method and the computer software program, ‘Talren’. Non-circular failure has also

been considered using Janbu’s method.

Relevant shear strength parameters have been taken from Table D1. Reference has also been

made to the recommended slope profiles given in Section 5.4.1, the cable percussion borehole

logs (Appendix B) and the 1/2500 scale Drift Thickness Plan. The shear strength of the

underlying bedrock was estimated using the Hoek-Brown strength criterion and it was

assumed that this comprised moderately weak to weak, poor quality mudstone (c = 5Mpa,

GSI = 35, mi = 6 and D = 0).

The following scenarios were considered:

(i) a 4m high, 1v in 1h (45º) excavated slope in Unit 2 material;

(ii) a 4m high, 1v in 1h (45º) excavated slope in Unit 4 material;

(iii) an 11m high, 1v in 1½h (33.7º) excavated slope in Unit 2 material;

(iv) an 11m high, 1v in 1½h (33.7º) excavated slope in Unit 4 material;

(v) a 28m high, 1v in 2h (26.6º) excavated slope profile in Unit 2 material; and

(vi) a 28m high, 1v in 2h (26.6º) excavated slope profile in Unit 4 material;

Fully drained conditions were considered because the superficial deposits at Highthorn have

been under-drained for some considerable time. There are also very few interbedded silt, sand

and gravel deposits.

The analysis results have been derived using a grid of circle centres and are expressed as

minimum factors of safety (FoS). They have been classified as follows:

<1.00 Unstable

1.0 to 1.1 Barely stable

1.2 to 1.3 Short term stability (i.e. a few days or weeks)

1.4 Medium term stability (i.e. a few weeks or months)

1.5 Long term stability (i.e. months and years)

The results are presented as Figures E1 to E24 and are summarized in Table E1.


E2 DABGeot/09059GA/Final


Safety Notes

4m High 1v in 1h (45º) Graded Slope in Unit 2 Material

Slip circles with overall minimum factor of safety. Slip circles forced through point 2m behind crest of slope. Slip circles forced through point 4m behind crest of slope. Slip circles forced through point 5m behind crest of slope.

0.51

0.75

1.02

1.16

Unstable, but representative of minor surface unravelling only. Slip circles with minimum factor of safety extend through full height of slope. Unstable. Slip circles with minimum factor of safety extend through full height of slope. Barely stable. Slip circle with minimum factor of safety extends through full height of slope. Stable in short term.

4m High 1v in 1h (45º) Graded Slope in Unit 4 Material


0.44

0.64

0.87

1.00

Unstable, but representative of minor surface unravelling only. Slip circles with minimum factor of safety extend through full height of slope. Unstable. Slip circles with minimum factor of safety extend through full height of slope. Unstable. Slip circle with minimum factor of safety extends through full height of slope. Barely stable.

11m High 1v in 1½h (33.7º) Graded Slope in Unit 2 Material


0.76

0.82

0.91

0.96

Unstable, but representative of minor surface unravelling only. Slip circles with minimum factor of safety extend through full height of slope. Unstable. Slip circles with minimum factor of safety extend through full height of slope. Unstable. Slip circles with minimum factor of safety extend through full height of slope. Barely stable.

11m High 1v in 1½h (33.7º) Graded Slope in Unit 4 Material


0.65

0.71

0.78

0.83

Unstable, but representative of minor surface unravelling only. Slip circles with minimum factor of safety extend through full height of slope. Unstable. Slip circle with minimum factor of safety extends through full height of slope. Unstable. Slip circles with minimum factor of safety extend through full height of slope. Unstable.

Table E1 Summary of Slope Stability Analysis Results

for Graded Excavation Slopes in the Superficial (Glacial and Fluvio-glacial) Deposits


DABGeot/09059GA/Final 3 E


Safety Notes

28m High 1v in 2h (26.6º) Graded Slope in Unit 2 Material


1.01

1.05

1.08

1.09

Barely stable, but representative of minor surface unravelling only. Slip circles with minimum factor of safety daylight through almost full height of mound. Barely stable. Slip circles with minimum factor of safety daylight through almost full height of mound. Barely stable. Slip circles with minimum factor of safety daylight through almost full height of mound. Barely stable.

28m High 1v in 2h (26.6º) Graded Slope in Unit 4 Material


0.87

0.90

0.93

0.94

Barely stable, but representative of minor surface unravelling only. Slip circles with minimum factor of safety daylight through almost full height of mound. Barely stable. Slip circles with minimum factor of safety daylight through almost full height of mound. Barely stable. Slip circles with minimum factor of safety daylight through almost full height of mound. Barely stable.

Table E1 cont’d. Summary of Slope Stability Analysis Results

for Graded Excavation Slopes in the Superficial (Glacial and Fluvio-glacial) Deposits

The assumptions made in the slope stability analysis are clearly very conservative. None of

the excavation slopes at Highthorn will be formed exclusively in Unit 2 and Unit 4 material.

The cable percussion boreholes show that a layered succession of Units 1, 2 and 3 and very

occasionally Unit 4 (laminated clay) will be present. These all have variable thickness. The

shear strength of Units 1 and 3 is higher than that used in the calculations. Nevertheless, it

would appear from the borehole logs that Unit 2 forms the predominant material.

The analysis results show that there will be a propensity for the excavated slopes to slump and

that the effects could extend back to the toes of the adjacent soil storage mounds. However,

any pore pressures induced by these mounds will have at least partly dissipated by the time

the excavations are formed, especially in those areas lying outside the boxcut. This could

otherwise have an adverse effect on stability. Further dissipation will occur as the excavations

are formed and it is expected that negative pore pressures will be present in the slopes. This

will have a stabilizing effect. No account has also been made of any lateral restraint which

will also increase the factors of safety.



Experience shows that the adequate stability can be maintained within the likely timescale

that the excavations will remain open. Progressive backfilling will be carried out as soon the

boxcut has been formed and the excavations are being advanced. However, it is important that

the perimeter slopes in the glacial materials are fully graded as recommended in Section 5.4.1

and that a rockhead bench is always provided.

Non-circular analysis was carried out by extending part of the potential failure surface along

the interface with the underlying bedrock, but all the factors of safety were found to exceed

1.5 (long term stability). The shear strength of the bedrock would have to be very low to

facilitate failure and observations made during the various site investigations have shown that

this will not be the case.

E2. Slope Stability Analysis Results for Planar Failure (Western and North-western

Highwalls

The risk of planar failure has been assessed using the analysis method described in Hoek and

Bray (1981). The analysis model was based on the north-western excavation highwall where

the workings will be extended to the Bottom Yard (G100) seam at a depth of around 51m.

The highwall will comprise a 1v in 2h (26.6°) graded slope in the superficial (glacial)

deposits, a 5m wide rockhead bench and a 1v in 1h (45°) benched profile in the underlying

bedrock. (This is in accordance with the recommendations made in this report. The bench

faces were assumed to be 7m high with 4m wide safety benches in the model, but this will

vary dependent on the seam partings.) The dip of the strata was taken as 1v in 10h (5.7°), the

maximum adverse dip observed along the north-western and western perimeters of the

excavation area. The excavation pavement was assumed to consist of very weak mudstone

with the most conservative peak and residual shear strength parameters selected from Tables

6 and 7. The density of the combined glacial clay and bedrock materials was estimated using

the data provided by the geotechnical site investigations. The critical location of the tension

crack was determined using the following relationship for fully drained conditions:

bc/H = (cot.cot)0.5 - cot

where bc is the distance (m) between the crest of the slope and the tension crack, is the

inclination of the failure plane and is the inclination of the slope or bench face. The analysis

assumes that this can extend through the full height of the slope. This is certainly feasible in

jointed bedrock; less so in partly fissured glacial till. The analysis was therefore repeated with

the tension crack along the crest of the highwall and then entirely within the bedrock. The

calculations do not take into account any lateral variation in shear strength or lateral restraint,

though the latter may be restricted by the presence of joints and fractures.

The analysis results are presented as Figures E25 to E36 and are summarized in Table E2.

Where appropriate, these include the buttress volumes required to achieve minimum factors

of safety of 1.2 (short term stability) and 1.5 (long term stability) based on the density and

likely shear strength of loose tipped rockfill.



Details Factor of

Safety FoS) Notes

Stabilization Measures

(m3 per linear metre)

Tension Crack Behind Crest of Excavation Slope

Peak Shear Strength c’ = 11 kN/m2 ’ = 16º

Low groundwater level High groundwater level

2.94 2.81

Long term stability Long term stability

Not required. Not required.

Residual Shear Strength c’ = 0 kN/m2 ’ = 11º


1.90 1.81



Tension Crack at Crest of Excavation Slope



3.01 2.94





1.92 1.87



Tension Crack confined with Bedrock Strata



3.14 3.09





1.93 1.89



Table E2 Summary of Planar Failure Analysis Results for North-Western Excavation Highwall

The results show that stability can be maintained in the long term (FoS greater than 1.5) and

that stabilization measures will not be required. In the event that any very weak mudstone

horizons are present in the excavations, there is no reason to suppose that they will only have

residual strength. Experience has shown that peak shear strength can be maintained even

where the strata have been affected by mining subsidence. Furthermore, very weak mudstone

horizons are of limited thickness and in many cases laterally discontinuous. Should failure

occur, the shear surface can quickly extend into more competent strata restricting any further

displacement (i.e. the failure effectively locks up). The consequences of planar or

translational failure can be serious, but would be confined within the site boundary at

Highthorn (i.e. adjacent properties including Hemscott Hill Farm would not be affected).

The analysis results also apply to the western highwall if coal extraction in the Bottom Yard

(G100) is extended through the pillared workings. These will impact stability as described in

Section 5.8, but large scale failure extending behind the excavation is considered highly

unlikely. Any instability of the bench faces can be mitigated by providing wider safety

benches and localized buttressing. These issues can be addressed during the course of the

operation following routine inspections.

Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 26.7 42

Γφ 1 1


.55 .63 .55 4.68 4.15 3.75 3.47 3.23 2.89 2.62

.63 .55 .6 4.4 .51 3.55 3.25 3.07 2.9 2.59

.55 .6 .55 .51 3.76 3.42 3.13 2.93 2.8 2.62

.66 .55 .51 .55 .52 3.35 3.06 2.86 2.7 2.53

.66 .51 .56 .52 .55 .53 .51 2.83 2.65 2.48

.84 .66 .54 .58 .53 .51 3.02 .51 2.63 2.49

.89 .67 .66 .56 .51 .53 .51 2.82 2.66 2.52

1.05 .83 .67 .53 .58 .51 .54 .52 2.68 2.52

1.21 .96 .79 .67 .56 .59 .53 .55 .52 .51

1.35 1.01 .82 .77 .67 .58 .6 .54 .51 2.56

Γmin .51Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL

Highthorn Surface Mine4m High Highwall Excavation 1v in 1h Slope Profile File : 4m Excavation.tal Proj : 09059


Date : 05/07/2001 Time : 00:34:10


Unit 2

Moderately weak to weak; poor quality mudstone


DAB GEOTECHNICS LTD. E1



Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 26.7 42

Γφ 1 1


Γmin .75Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 00:36:26


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 26.7 42

Γφ 1 1


Γmin 1.02Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 00:38:09


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 26.7 42

Γφ 1 1


Γmin 1.16Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 00:40:28


Unit 2






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 23.4 42

Γφ 1 1


.47 .54 .47 4.73 4.17 3.77 3.48 3.23 2.89 2.63

.54 .47 .52 4.44 .44 3.57 3.26 3.07 2.9 2.59

.47 .52 .47 .44 3.78 3.44 3.14 2.94 2.8 2.62

.57 .47 .44 .47 .45 3.37 3.07 2.87 2.7 2.53

.57 .44 .48 .45 .47 .45 .44 2.84 2.65 2.48

.72 .57 .46 .5 .45 .44 3.03 .44 2.64 2.49

.76 .58 .57 .48 .44 .46 .44 2.83 2.67 2.52

.91 .71 .58 .45 .5 .44 .47 .45 2.68 2.52

1.04 .82 .68 .58 .48 .51 .45 .47 .45 .44

1.16 .87 .71 .66 .58 .5 .51 .46 .44 2.56

Γmin .44Γs3 1

Scale : 1/ 150

0 10 1

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Date : 05/07/2001 Time : 00:49:36


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 23.4 42

Γφ 1 1


Γmin .64Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 00:47:22


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 23.4 42

Γφ 1 1


Γmin .87Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 00:45:47


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 28

Γc 1 1

φ 23.4 42

Γφ 1 1


Γmin 1Γs3 1

Scale : 1/ 150

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 00:44:11


Unit 4






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 26.7 35

Γφ 1 1


.87 .85 .82 .81 .79 .78 .77 .76 .76 3.25

.78 .77 .76 .82 .81 .8 .79 .78 .77 .77

.81 .79 .78 .77 .76 .76 .8 .8 .79 .78

.82 .81 .8 .79 .78 .77 .77 .76 .76 .79

.77 .76 .76 .8 .8 .79 .78 .78 .77 .77

.79 .78 .77 .77 .76 .76 .79 .79 .78 .78

.8 .8 .79 .78 .78 .77 .77 .76 .76 .79

.77 .76 .76 .79 .79 .78 .78 .77 .77 .76 .78 .78 .77 .77 .76 .76 .79 .78 .78 .77

.79 .79 .78 .78 .77 .77 .76 .76 .76 .78

Γmin .76Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

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Highthorn Surface Mine11m High Highwall Excavation 1v in 1.5h Slope Profile File : 11m Excavation.tal Proj : 09059


Date : 05/07/2001 Time : 00:58:34


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 26.7 35

Γφ 1 1


Γmin .82Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 01:31:48


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 26.7 35

Γφ 1 1


Γmin .91Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

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Date : 05/07/2001 Time : 01:32:24


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 26.7 35

Γφ 1 1


Γmin .96Γs3 1

Scale : 1/ 200

0 10 1

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Date : 05/07/2001 Time : 01:34:00


Unit 2






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 23.4 35

Γφ 1 1


.65 .75 .73 .71 .69 .68 .67 .66 .66 .65 .69 .67 .66 .65 .71 .7 .69 .68 .67 .67

.71 .69 .68 .67 .66 .66 .65 .69 .68 .68

.65 .71 .7 .69 .68 .67 .67 .66 .66 .65 .67 .66 .66 .65 .69 .68 .68 .67 .67 .66

.69 .68 .67 .67 .66 .66 .65 .68 .68 .67

.65 .69 .68 .68 .67 .67 .66 .66 .65 .65 .67 .66 .66 .65 .68 .68 .67 .67 .66 .66

.68 .67 .67 .66 .66 .65 .65 .68 .67 .67

.65 .68 .68 .67 .67 .66 .66 .66 .65 .65

Γmin .65Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:38:39


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 23.4 35

Γφ 1 1


Γmin .71Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:37:38


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 23.4 35

Γφ 1 1


Γmin .78Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:36:41


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 50

Γc 1 1

φ 23.4 35

Γφ 1 1


Γmin .83Γs3 1

Scale : 1/ 200

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:35:33


Unit 4






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 26.7 28

Γφ 1 1


1.02 1.03 1.04 1.04 1.05 1.05 1.06 1.06 1.01 1.01 1.04 1.04 1.05 1.05 1.06 1.06 1.01 1.01 1.02 1.02 1.05 1.05 1.06 1.06 1.01 1.01 1.02 1.02 1.03 1.03 1.06 1.06 1.01 1.01 1.02 1.02 1.03 1.03 1.03 1.04 1.01 1.01 1.02 1.02 1.03 1.03 1.03 1.04 1.04 1.04 1.02 1.02 1.03 1.03 1.03 1.04 1.04 1.04 1.01 1.01 1.03 1.03 1.03 1.04 1.04 1.04 1.01 1.01 1.02 1.02 1.03 1.04 1.04 1.04 1.01 1.01 1.02 1.02 1.02 1.02 1.04 1.04 1.01 1.01 1.02 1.02 1.02 1.02 1.03 1.03 1.01 1.01 1.02 1.02 1.02 1.02 1.03 1.03 1.03 1.01

Γmin 1.01Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:56:47


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 26.7 28

Γφ 1 1


Γmin 1.05Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:55:46


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 26.7 28

Γφ 1 1


Γmin 1.08Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:54:59


Unit 2






Soil no 1 2

γ 20.99 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 26.7 28

Γφ 1 1


Γmin 1.09Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:54:02


Unit 2






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 23.4 28

Γφ 1 1


.87 .88 .89 .89 .9 .9 .91 .91 .91 .87 .89 .89 .9 .9 .91 .91 .91 .87 .87 .88 .9 .9 .91 .91 .91 .87 .87 .88 .88 .88 .91 .91 .91 .87 .87 .88 .88 .88 .89 .89 .91 .87 .87 .88 .88 .88 .89 .89 .89 .9 .87 .88 .88 .88 .89 .89 .89 .9 .9 .87 .88 .88 .89 .89 .89 .9 .9 .87 .87 .87 .89 .89 .89 .9 .9 .87 .87 .87 .88 .88 .89 .9 .9 .87 .87 .87 .88 .88 .88 .89 .9 .87 .87 .87 .88 .88 .88 .89 .89 .89 Γmin .87

Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:46:33


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 23.4 28

Γφ 1 1


Γmin .9Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:49:41


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 23.4 28

Γφ 1 1


Γmin .93Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:51:00


Unit 4






Soil no 1 2

γ 20.41 23.54

Γs1 1 1

c 0 90

Γc 1 1

φ 23.4 28

Γφ 1 1


Γmin .94Γs3 1

Scale : 1/ 350

0 10 1

TALREN 97V2.2 - 01/04/2002

TERRASOL



Date : 05/07/2001 Time : 01:52:15


Unit 4






PLANAR FAILURE

Single block with tension crack behind crest

Site HighthornLocation of Slope North-Western Highwall

x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 28.00

Density of rock material () 2.40 Mg/m3Density of water (pw) 1.00 Mg/m3

x y 5.00 5.00

Height of slope or bench face (H) 51.00 m 200.00 24.50

Inclination of slope or bench face () 39.21 o or 0.68 radians Tension Crack Coordinatesx y

Inclination of failure plane () 5.71 o or 0.10 radians or 1v in 10.0 h 183.54 22.85

183.54 56.00

Inclination of groundwater profile () 6.73 o or 0.12 radians or 1v in 8.5 h

Shear strength parameters for failure plane c' 11 kN/m2 ' 16o or 0.28 radians

For tension crack behind or at crest:

z is the depth of the tension crack 33.15 m (This depth is measured from the top of the slope.)

zw is the height of the water column in the tension crack 3.20 m. Value used in calculation 3.20 m (This depth is measured from the slipsurface upwards.)

W = 0.5gH2{[1 - (z/H)2]cotcot= 139332.53 kN

U = 0.5wgzw(H - z)cosec = 2820.36 kN

Y = 0.5wgzw2 = 50.37 kN

1973.735

Factor of Safety (FoS) = c'(H - z)cosec(Wcos - U - Ysin)tan' = 2.94 ######### 2820.358 5.012 38944.520

Wsin + Ycos 13864.105 50.121 13914.226 2.941

Stabilization of slope

Vcos is the resisting force of the buttress parallel to bench, where

is the coefficient of friction between buttress and ground (= tanB') ' 40o or 0.70 radians

and V is the weight per unit metre

FoS = c'(H - z)cosVcostanB'(Wcos - U - Ysin)tan'

Wsin + Ycos

For long term stability, FoS >= 1.5

V = (1.5 x (WsinYcos))c'(H - z)cosec(WcosU Ysin)tan' = 0.00 kN/m3 per linear metre -24010.14 costanB'

If the density of the supporting buttress (e.g. rockfill) is 1.9 Mg/m3then the volume per linear metre is 0.00 m3

0

For short term stability, FoS >= 1.2



0

Shear Plane Coordinates

Groundwater Coordinates

Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)

Horizontal Distance (m)

Rockhead

Bottom Yard (G100)

FIGURE E25

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 33.00


x y 5.00 5.00




183.54 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 139332.53 kN

U = 0.5wgzw(H - z)cosec = 6849.44 kN

Y = 0.5wgzw2 = 297.08 kN

1973.735


Wsin + Ycos 13864.105 295.609 14159.714 2.808






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E26

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 28.00


x y 5.00 5.00




183.54 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 139332.53 kN

U = 0.5wgzw(H - z)cosec = 2820.36 kN

Y = 0.5wgzw2 = 50.37 kN

0.000


Wsin + Ycos 13864.105 50.121 13914.226 1.897






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E27

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 33.00


x y 5.00 5.00




183.54 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 139332.53 kN

U = 0.5wgzw(H - z)cosec = 6849.44 kN

Y = 0.5wgzw2 = 297.08 kN

0.000


Wsin + Ycos 13864.105 295.609 14159.714 1.809






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E28

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 28.00


x y 5.00 5.00




82.00 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 47954.42 kN

U = 0.5wgzw(H - z)cosec = 524.58 kN

Y = 0.5wgzw2 = 9.37 kN

851.224

Factor of Safety (FoS) = c'(H - z)cosec(Wcos - U - Ysin)tan' = 3.01 47716.431 524.583 0.932 13531.777

Wsin + Ycos 4771.643 9.322 4780.965 3.008






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E29

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 33.00


x y 5.00 5.00




82.00 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 47954.42 kN

U = 0.5wgzw(H - z)cosec = 1273.99 kN

Y = 0.5wgzw2 = 55.26 kN

851.224


Wsin + Ycos 4771.643 54.983 4826.626 2.935






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E30

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 28.00


x y 5.00 5.00




82.00 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 47954.42 kN


Y = 0.5wgzw2 = 9.37 kN

0.000


Wsin + Ycos 4771.643 9.322 4780.965 1.919






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E31

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 67.50 56.00

x y5.00 5.00

200.00 33.00


x y 5.00 5.00




82.00 56.00






W = 0.5gH2{[1 - (z/H)2]cotcot= 47954.42 kN

U = 0.5wgzw(H - z)cosec = 1273.99 kN

Y = 0.5wgzw2 = 55.26 kN

0.000


Wsin + Ycos 4771.643 54.983 4826.626 1.870






Wsin + Ycos




0




0



Surface Coordinates

Lower Daylight

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200

Ver

tica

l Ht.

(m)


Rockhead

Bottom Yard (G100)

FIGURE E32

PLANAR FAILURE

Single block with tension crack in slope


x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 31.00 33.00

Groundwater Coordinatesx y

5.00 5.0040.00 9.10

Density of rock material () 2.50 Mg/m3Density of water (w) 1.0 Mg/m3

x y

Lower Daylight 5.00 5.00Height of slope or bench face (H) 28.00 m 40.00 8.50


Inclination of failure plane () 5.71 o or 0.10 radians radians or 1v in 10.0 h 36.00 8.10

36.00 33.00

Inclination of groundwater profile () 6.68 o or 0.12 radians radians or 1v in 8.5 h




W = 0.5gH2{(1 - z/H)2cot(cottan - 1)} = 11512.32 kN


Y = 0.5wgzw2 = 1.39 kN

FoS = c'(H - z)cosec(Wcos - U - Ysin)tan' = 3.14

Wsin + Ycos


Vcos is the resisting force of the buttress parallel to bench, where:

is the coefficient of friction between buttress and ground (= tanB') ' 40o or 0.70 radians 1.5x

and V is the weight per unit metre 1720.3452471.2x 1376.276198

FoS = c'(H - z)cosVcostanB'(Wcos - U - Ysin)tan' 1.2x 342.7007587 Wsin + Ycos 3261.40

0.834935339For long term stability, FoS >= 1.5






Surface Coordinates


0

4

8

12

16

20

24

28

32

36

40

0 4 8 12 16 20 24 28 32 36 40

Ve

rtic

al H

t. (

m)


FIGURE E33

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 31.00 33.00


5.00 5.0040.00 10.00


x y




36.00 33.00







Y = 0.5wgzw2 = 8.66 kN


Wsin + Ycos





FoS = c'(H - z)cosVcostanB'(Wcos - U - Ysin)tan' 1.2x 342.7007587 Wsin + Ycos 3226.26







Surface Coordinates


0

4

8

12

16

20

24

28

32

36

40

0 4 8 12 16 20 24 28 32 36 40

Ve

rtic

al H

t. (

m)


FIGURE E34

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 31.00 33.00


5.00 5.0040.00 9.10


x y




36.00 33.00







Y = 0.5wgzw2 = 1.39 kN


Wsin + Ycos





FoS = c'(H - z)cosVcostanB'(Wcos - U - Ysin)tan' 1.2x 0 Wsin + Ycos 2210.85







Surface Coordinates


0

4

8

12

16

20

24

28

32

36

40

0 4 8 12 16 20 24 28 32 36 40

Ve

rtic

al H

t. (

m)


FIGURE E35

PLANAR FAILURE



x y

Toe 5 58.5 12

12.5 1216 1920 19

23.5 2627.5 26

31 3336 3382 56

200 56

Toe 5.00 5.00Crest 31.00 33.00


5.00 5.0040.00 10.00


x y




36.00 33.00







Y = 0.5wgzw2 = 8.66 kN


Wsin + Ycos





FoS = c'(H - z)cosVcostanB'(Wcos - U - Ysin)tan' 1.2x 0 Wsin + Ycos 2187.03







Surface Coordinates


0

4

8

12

16

20

24

28

32

36

40

0 4 8 12 16 20 24 28 32 36 40

Ve

rtic

al H

t. (

m)


FIGURE E36

appendix d slope stability analysis results for soil and ... · ditto with r u = 0.2. ditto with r...

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