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REPORT
Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Dallington Upper Appendix C: Borehole Logs
Darfield Earthquake Recovery Geotechnical Factual Report Dallington Upper
Appendix C: Borehole Logs T&T Ref. REP-DAU-FAC
Earthquake Commission February 2011
REPORT
Report prepared for:
EARTHQUAKE COMMISSION
Report prepared by:
TONKIN & TAYLOR LTD
Distribution:
EARTHQUAKE COMMISSION 3 copies
TONKIN & TAYLOR LTD (FILE) 1 copy
February 2011
T&T Ref: REP-DAU-FAC
Earthquake Commission Darfield Earthquake Recovery Geotechnical Factual Report Dallington Upper
Appendix C: Borehole Logs
Darfield Earthquake Recovery Geotechnical Factual Report Dallington Upper
Appendix C: Borehole Logs T&T Ref. REP-DAU-FAC
Earthquake Commission February 2011
Appendix C: Borehole Logs
Summary Sheet – Dallington Upper DAU 15a
Borehole ID Maximum depth (m)
Location (mE)
Location (mN)
Ground level R.L
Method Drilling Company
BH-DAL-07 15.00 2484329 5743822 2.17 Concentrix CW Drillers
BH-DAL-08 15.45 2484319 5744227 2.13 Duel Tube McMillan
BH-DAL-09 15.00 2484185 5744432 1.98 Concentrix CW Drillers
SA
MP
LE
BA
GG
ED
Ope
n B
arre
l
HAND DIG FILL.(Potholed for servicescheck and backfilled.)
YALDHURSTFORMATION(Alluvial)
1/1/1N=2
FC
PSD WS
PSD HYD
2/5/6N=11
PSD WS
FC
1/2/4N=6
SW
ML
SW
ML
SW
SW
VL
VS
VL
F
MD
L
65
D
W
FILL: Fine to medium SAND, brown. Dry,well graded. (Borehole drilled throughpre-dug and backfilled pothole.)
SILT with some sand, brown. Dry, lowplasticity.
Fine to medium SAND with some silt,brown. Wet, well graded.
SILT with some sand, grey. Wet, lowplasticity. Sand is fine.
- 1.5m to 2m no recovery
Fine to medium SAND with trace silt, grey.Wet, well graded. Becomes more silty withdepth.
Fine to medium SAND trace gravel, greyishbrown. Wet, well graded. Gravel is medium,rounded.
100
6710
0
Hole Location:BH-DAL-07-Dallington
SHEET 1 OF 3
BOREHOLE No: DAL-07
BORELOG DALLINGTON.GPJ 7/2/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
DE
PT
H (
m)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
5
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.17 m
Lyttleton 1937
DRILL TYPE:
DRILL METHOD: Open barrel/concentrix
HOLE STARTED: 6/12/10
HOLE FINISHED: 8/12/10
DRILLED BY: CW Drilling
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 7/2/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5743822.322484329.35
TONKIN & TAYLOR LTD
Ope
n B
arre
l
YALDHURSTFORMATION(Alluvial) FC
1/3/2N=5
FC
1/1/4N=5
FC
5/3/14N=17FC
FC
SW
SW
SP
ML
L
MD
St
65
W Fine to medium SAND trace gravel, greyishbrown. Wet, well graded. Gravel is medium,rounded.
Medium to coarse SAND with minorgravel, grey. Wet, well graded. Gravel isfine, rounded.
Fine SAND, grey. Wet, poorly graded.
SILT, grey. Wet, low plasticity.
- organics (possible soil horizon)
100
100
100
100
Hole Location:BH-DAL-07-Dallington
SHEET 2 OF 3
BOREHOLE No: DAL-07
BORELOG DALLINGTON.GPJ 7/2/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-3.0
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
-6.5
-7.0
-7.5
DE
PT
H (
m)
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
10
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.17 m
Lyttleton 1937
DRILL TYPE:
DRILL METHOD: Open barrel/concentrix
HOLE STARTED: 6/12/10
HOLE FINISHED: 8/12/10
DRILLED BY: CW Drilling
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 7/2/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5743822.322484329.35
TONKIN & TAYLOR LTD
Ope
n B
arre
l
CHRISTCHURCHFORMATION(Coastal)
4/18/12N=30
3/4/12N=16
ML
SP
St
MD
65
W SILT, grey. Wet, low plasticity.
- grading into fine sand
Fine SAND, grey. Wet, poorly graded.
End of borehole at 15mbgl.
100
100
Hole Location:BH-DAL-07-Dallington
SHEET 3 OF 3
BOREHOLE No: DAL-07
BORELOG DALLINGTON.GPJ 7/2/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-8.0
-8.5
-9.0
-9.5
-10.0
-10.5
-11.0
-11.5
-12.0
-12.5
DE
PT
H (
m)
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
15
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.17 m
Lyttleton 1937
DRILL TYPE:
DRILL METHOD: Open barrel/concentrix
HOLE STARTED: 6/12/10
HOLE FINISHED: 8/12/10
DRILLED BY: CW Drilling
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 7/2/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5743822.322484329.35
TONKIN & TAYLOR LTD
BA
GG
ED
SA
MP
LE
DT
DT
DT
HAND DIG FILL
YALDHURSTFORMATION(Alluvial)
1/1/1N=2
FC
PSD
PSD HYD
1/4/6N=10
FC
5/4/7N=11
PSD
8/9/7N=16
SPM
ML
ML
SP
SW
SP
VL
S
S
MD
MD
MD
50
D
M
W
W
W
W
FILL: Silty, fine SAND, brown. Dry,poorly graded.
SILT with some fine sand, brown. Moist,low plasticity, slightly dilatant.
SILT, grey. Wet, low plasticity, cohesive,dilatant.
- soil horizon (organic)
Medium SAND, grey. Wet, poorly graded.
Medium to coarse SAND with some gravel,grey. Wet, well graded. Gravel is fine.
Fine to medium SAND, grey. Wet, poorlygraded.
100
5842
Hole Location:BH-DAL-08-Dallington
SHEET 1 OF 4
BOREHOLE No: DAL-08
BORELOG DALLINGTON.GPJ 10/1/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
DE
PT
H (
m)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
5
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.13 m
Lyttleton 1937
DRILL TYPE: Percussive
DRILL METHOD: DT
HOLE STARTED: 25/11/10
HOLE FINISHED: 26/11/10
DRILLED BY: McMillan
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/1/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744227.012484319.38
TONKIN & TAYLOR LTD
DT
DT
DT
DT
YALDHURSTFORMATION(Alluvial)
TRANSITIONSYALDHURSTFORMATION TOCHRISTCHURCHFORMATION(Estuarine?)
FC
1/1/2N=3
FC
13/19/18N=37
FC
14/11/11N=22
FC
6/10/14N=24
GW
SP
ML
VL
VL
D
D
MD
St
50
W
W
W
W
W
Fine to medium SAND, grey. Wet, poorlygraded.
- very thin silt bed- very thin silt bedSilty, fine GRAVEL, grey. Wet, poorlygraded, rounded.
Fine SAND, grey. Wet, poorly graded.
SILT, grey. Wet, low plasticity, dilatant,cohesive.
- soil horizon (organic)
5075
5010
0
Hole Location:BH-DAL-08-Dallington
SHEET 2 OF 4
BOREHOLE No: DAL-08
BORELOG DALLINGTON.GPJ 10/1/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-3.0
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
-6.5
-7.0
-7.5
DE
PT
H (
m)
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
10
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.13 m
Lyttleton 1937
DRILL TYPE: Percussive
DRILL METHOD: DT
HOLE STARTED: 25/11/10
HOLE FINISHED: 26/11/10
DRILLED BY: McMillan
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/1/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744227.012484319.38
TONKIN & TAYLOR LTD
DT
DT
DT
DT
DT
CHRISTCHURCHFORMATION(Marine/Coastal)
FC
7/10/12N=22
FC
10/17/16N=33
5/9/15N=24
14/19/23N=42
SP MD
D
MD
D
MD
50
W
W
Fine SAND, grey. Wet, poorly graded.
5863
5038
50
Hole Location:BH-DAL-08-Dallington
SHEET 3 OF 4
BOREHOLE No: DAL-08
BORELOG DALLINGTON.GPJ 10/1/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-8.0
-8.5
-9.0
-9.5
-10.0
-10.5
-11.0
-11.5
-12.0
-12.5
DE
PT
H (
m)
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
15
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.13 m
Lyttleton 1937
DRILL TYPE: Percussive
DRILL METHOD: DT
HOLE STARTED: 25/11/10
HOLE FINISHED: 26/11/10
DRILLED BY: McMillan
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/1/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744227.012484319.38
TONKIN & TAYLOR LTD
CHRISTCHURCHFORMATION(Marine/Coastal)
7/11/12N=23
End of recovered borehole at 15.45mbgl.
Hole Location:BH-DAL-08-Dallington
SHEET 4 OF 4
BOREHOLE No: DAL-08
BORELOG DALLINGTON.GPJ 10/1/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-13.0
-13.5
-14.0
-14.5
-15.0
-15.5
-16.0
-16.5
-17.0
-17.5
DE
PT
H (
m)
15.5
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
15.5
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
20
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
2.13 m
Lyttleton 1937
DRILL TYPE: Percussive
DRILL METHOD: DT
HOLE STARTED: 25/11/10
HOLE FINISHED: 26/11/10
DRILLED BY: McMillan
LOGGED BY: ZDP CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/1/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744227.012484319.38
TONKIN & TAYLOR LTD
SA
MP
LE
BA
GG
ED
Ope
n B
arre
l
HAND DIG FILL.(Potholed for servicescheck and backfilled.)
YALDHURSTFORMATION(Alluvial gravel andoverbank silt)
1/2/1N=3FC
PSD WS
FC
FC
3/3/3N=6
FC
1/1/1N=2
SP
SP
SW
VL
L
VL
65
D
W
FILL: Fine SAND with trace silt , brown.Dry, poorly graded. (Borehole drilledthrough pre-dug and backfilled pothole.)
Fine SAND with trace silt, brown. Dry,poorly graded.
Fine SAND with trace silt, grey. Wet,poorly graded.
Fine to medium SAND with some gravel,grey. Wet, well graded.
100
100
100
100
Hole Location:BH-DAL-09-Dallington
SHEET 1 OF 3
BOREHOLE No: DAL-09
BORELOG DALLINGTON.GPJ 10/2/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
DE
PT
H (
m)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
5
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
1.98 m
Lyttleton 1937
DRILL TYPE:
DRILL METHOD: Open barrel/concentrix
HOLE STARTED: 2/12/10
HOLE FINISHED: 3/12/10
DRILLED BY: CW Drilling
LOGGED BY: JCA CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/2/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744431.52484185.14
TONKIN & TAYLOR LTD
Ope
n B
arre
l
YALDHURSTFORMATION(Alluvial gravel andoverbank silt)
CHRISTCHURCHFORMATION(Coastal sand)
2/5/7N=12FC
1/2/4N=6
PSD WS
FC
4/13/18N=31
GW
SW
SW
SP
VL
MD
L
MD
65
W Fine to medium GRAVEL, well graded.Gravel is grained, rounded.
Fine to medium SAND, grey. Wet, wellgraded.
Gravelly, fine to coarse SAND, grey. Wet,well graded. Gravel is fine to medium.
Fine SAND with a trace of silt, grey. Wet,poorly graded.
- 8.5m to 9m no recovery
- trace gravel
- trace gravel
100
100
100
5010
0
Hole Location:BH-DAL-09-Dallington
SHEET 2 OF 3
BOREHOLE No: DAL-09
BORELOG DALLINGTON.GPJ 10/2/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-3.5
-4.0
-4.5
-5.0
-5.5
-6.0
-6.5
-7.0
-7.5
DE
PT
H (
m)
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
10
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
1.98 m
Lyttleton 1937
DRILL TYPE:
DRILL METHOD: Open barrel/concentrix
HOLE STARTED: 2/12/10
HOLE FINISHED: 3/12/10
DRILLED BY: CW Drilling
LOGGED BY: JCA CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/2/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744431.52484185.14
TONKIN & TAYLOR LTD
Ope
n B
arre
l
CHRISTCHURCHFORMATION(Coastal sand) FC
3/9/9N=18
4/6/9N=15
4/7/9N=16
SP
GP
SP
MD
65
W Fine SAND with trace silt, grey. Wet,poorly graded.
Sandy fine GRAVEL, grey. Wet, poorlygraded. Gravel is rounded.Fine SAND, grey. Wet, poorly graded.- very thin lens of silt- very thin lens of silt
End of borehole at 15mbgl.
100
100
100
100
100
100
100
100
Hole Location:BH-DAL-09-Dallington
SHEET 3 OF 3
BOREHOLE No: DAL-09
BORELOG DALLINGTON.GPJ 10/2/11
CA
SIN
G
TESTS
SA
MP
LES
WE
AT
HE
RIN
G
ST
RE
NG
TH
/DE
NS
ITY
CLA
SS
IFIC
AT
ION
SH
EA
R S
TR
EN
GT
H
(kP
a)
10 25 50 100
200
CO
MP
RE
SS
IVE
ST
RE
NG
TH
(MP
a)
1 5GR
AP
HIC
LO
G
CLA
SS
IFIC
AT
ION
SY
MB
OL
R.L
. (m
)
-8.5
-9.0
-9.5
-10.0
-10.5
-11.0
-11.5
-12.0
-12.5
DE
PT
H (
m)
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
MO
IST
UR
E
CO
ND
ITIO
N
ROCK DESCRIPTION
Substance: Rock type, particle size, colour,minor components.
Defects: Type, inclination, thickness,
BOREHOLE LOG
WA
TE
R
20 50 100 roughness, filling.
50 250
1000
2000
250
DE
FE
CT
SP
AC
ING
(mm
)
15
SOIL DESCRIPTION
Soil type, minor components, plasticity orparticle size, colour.ORIGIN,
MINERAL COMPOSITION.
ENGINEERING DESCRIPTION
FLU
ID L
OS
S
ME
TH
OD
GENERIC NAME,
GEOLOGICAL
GEOLOGICAL UNIT,
CO
RE
RE
CO
VE
RY
(%
)
CO-ORDINATES
R.L.
DATUM
PROJECT: Darfield 2010 Earthquake - EQC Ground Investigations LOCATION: Dallington JOB No: 51731.001
1.98 m
Lyttleton 1937
DRILL TYPE:
DRILL METHOD: Open barrel/concentrix
HOLE STARTED: 2/12/10
HOLE FINISHED: 3/12/10
DRILLED BY: CW Drilling
LOGGED BY: JCA CHECKED: BMcDDRILL FLUID: N/A
BORELOG DALLINGTON.GPJ 10/2/11
T+
T_D
AT
AT
EM
PLA
TE
.GD
T e
ek
5744431.52484185.14
TONKIN & TAYLOR LTD
Darfield Earthquake Recovery Geotechnical Factual Report Dallington Upper
Appendix C: Borehole Logs T&T Ref. REP-DAU-FAC
Earthquake Commission February 2011