design statement - manchester line works walers

Design Statement - Manchester Line Works Walers

Contractor: Network Plus Services Ltd

Main Contractor: -

Groundforce Designer: Aneesah Ali 0845 602 9963

Groundforce Checker / Category: Emma McKeen 2a

Groundforce Representative: Lloyd Fellows 07860 882 847

Customer Contact: Joe Grimes 07790 893 507

Principal Designer/ TW coordinator: Please refer to page 3 of this document

Date / Number of Pages: 14/01/20 20

Design Reference / Rev: 77214/LF C01

Design Reference: 77214/LF Revision: C01 Designer: Aneesah Ali

Contents

Description: Page:

CDM 2015 statement 3

Basis of Design 4

Equipment Specification 5

General Notes 6

Scheme Specific Notes 7

Residual Risk Items 8

Design Input & Output, Sections & Drawings 9 - 18

Liability statement Appendix A

Internal Design Check Certificate - see note 5 below. Appendix B

IMPORTANT PLEASE NOTE

1. It is the contractor’s responsibility to thoroughly check this temporary works designsubmission to ensure that the design brief has been interpreted in accordance with thecontractor’s requirements.

2. It is the contractor’s responsibility to communicate the information contained within thisdesign to all relevant parties including the site principal designer(s) and temporary workscoordinators where appropriate. It is also the contractor’s responsibility to ensure that thisinformation is incorporated into site specific method statements and risk assessments.

3. Any significant residual risks remaining after the design process will be documented both onthe relevant page of this design and also on the scheme drawings. It is the contractor’sresponsibility to take steps to reduce these risks to an acceptable level.

4. A fee will be charged for any subsequent revisions to this full design that will require extensivere-design work.

5. This covers internal checks for Groundforce cat. 1, 2a and 2b. A fee will be charged for cat. 2(internal independent), cat. 3 (external independent) design checks and Network RailF002/F003 (or similar) completion.

Please ensure that this document is passed on to the site temporary works co-ordinator and or main contractor prior to commencing any excavation work.

If in doubt ASK!


CDM 2015 Statement The key aim of the CDM 2015 regulations is to integrate health and safety into the management of the project. As a result, specific duties are imposed on the key parties involved in a construction project namely:

1. The client 2. The principal designer (on sites where there is, or is likely to be, more than one contractor at any time) 3. Designers (this includes Groundforce Shorco as appointed temporary works designers). 4. The principal contractor (on sites where there is, or is likely to be, more than one contractor at any time) 5. Contractors

As competent temporary works’ designers operating within the CDM regulations, specifically regulation 9 and 10, along with regulation 8 – general duties, Groundforce Shorco undertake to:

1. Adopt a safety first approach to design work in accordance with recognised standards and codes of practice. 2. Eliminate hazards and reduce risks in their design process. 3. Communicate clear and concise information about design assumptions and residual risks to all relevant parties. 4. Review and check each design in relation to the design brief prior to issue.

One responsibility imposed on the client under CDM is to ensure that a principal designer has been appointed on sites where there is, or is likely to be, more than one contractor at any time. We have not been informed who the principal designer for this site is. A copy of this design should be passed on to the principal designer for consideration. In addition to the requirements of the CDM 2015 regulations, the main contractor or principle contractor should appoint a temporary works’ coordinator (TWC) and supervisor(s) (TWS) as recommended in BS 5975:2019. The TWC(s)’ and TWS(s)’ responsibilities are specified in section 7 of the above standard.

A copy of this design should be passed on to the TWC and or the TWS for consideration.


Basis of Design (summary of Design Brief)

Excavation Details

Duration of Excavation: Less than 12 weeks

Purpose of Excavation: Walers

Max. Excavation Depth: 3.50m* (dependant on standard solution selected)

* includes no allowance for overdig

Plan Dimensions: Sheet to Sheet: Refer to drawing ref: GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-2F-3.0-W and GR-3F-3.5-W Clear Opening

Min. Sheet Penetration: 0.00m (at stage 3)

Clearance below frame: Refer to drawing ref: GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-3F-3.0-W and GR-3F-3.5-W

Assumed soil parameters for purposes of design* Depth

(m) Soil Name γ (kN/m3)

φ

(°) Ka Kp δ

0.0 – 3.5 MADE GROUND Granular (Well compacted) 18.3 32 0.31 3.25 0.00

* These simplified parameters are deemed to be conservative based on the above information and result in a safe solution ** Contractor is to assess which of the designs is appropriate for each excavation as is encountered on site

Surcharge Details A uniform surcharge of 20kN/m2 at ground level to allow for general site traffic and • Excavators up to 30 tonne weight working near the excavation. OR • Excavators up to 20 tonne weight working near the excavation and adjacent road OR • Excavators up to 20 tonne weight working near the excavation and a simple

retaining wall no more than 0.5m high. OR • NO excavator. Simple wall retaining no more than 1.0m high. Note: Basic boundary wall (up to 2.0m high) not retaining anything is covered in the first two options.


Specification of Support Equipment

Sheets & Frames (Granular Ground at Base)

Contractor to select design from Shoring Manual – allowable designs are:

Waler Designs: (GR-2F-1.5), (GR-2F-2.0), (GR-2F-3.0) Additional allowable designs are: Additional Designs: (GR-2F-2.5), (GR-3F-3.0), (GR-3F-3.5)

Sheets

Sheet Type: Groundforce SD33 or KD4 (Lapped Sheets)

Minimum Length: 1.5m plus required upstand (to be assessed by contractor) (N.B. Minimum available sheet length = 2.0m)

Allowable Bending Moment: 8.5kNm/m (based on SD33 Trench Sheets) OR 19.0kNm/m (based on KD4 Trench Sheets)

Calculated Max. B Moment: Refer to drawing ref: GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-3F-3.0-W and GR-3F-3.5-W

Calculated Max. Deflection: Less than 10mm

Frame 1 & 2

Frames: 2 No. levels of Groundforce 3.0m or 5.0m Aluminium Walers C/W Hydraulics Cylinders

Working Load Capacity: Refer to drawing ref: GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-3F-3.0-W and GR-3F-3.5-W

Calculated Maximum Load: Refer to drawing ref: GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-3F-3.0-W and GR-3F-3.5-W

Calculated Max. Deflection: Less than 50mm

Restraining Chains

Restraint Chains: 16 No. For Location see drawing ref: GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-3F-3.0-W and GR-3F-3.5-W

Chain Connection Detail: Standard detail (see installation instructions)


General Notes 1. This design is only valid when used in conjunction with Groundforce Shorco & Piletec equipment. 2. This design is only valid for short-term (< 12 wks) temporary works’ applications. 3. The installation and use of the equipment is the responsibility of the Hirer. It is essential that appropriately trained personnel

are employed to install and use this equipment in accordance with the design specifications and user guides and general good practice. Groundforce can provide an installation advisory service to assist you with installing the equipment. Alternatively we can provide on site 'toolbox training'. Detailed user guides have been provided with the equipment, if not please ask.

4. Equipment must be supported by either restraining chains or supporting brackets at locations as shown on the scheme drawings, or in accordance with Groundforce user guides. Any non-standard restraint details must be verified by Groundforce prior to installation of the equipment.

5. All deflections stated within this document are approximate. The contractor must assess whether these are acceptable in relation to the continued serviceability of structures and services in the vicinity of the excavation.

6. The contractor is responsible for: Providing adequate lifting facilities to ensure the safe off-loading, installation and removal of the equipment.

Equipment weights are listed on the scheme drawings and user guides. Checking for the presence of underground and overhead services and dealing with accordingly. Providing appropriate edge protection to the perimeter of the excavation and also suitable means of access /

egress to and from the excavation Providing suitable means to control the inflow of any groundwater into the excavation

7. Unless otherwise stated in the scheme specific notes, all structural information has been calculated as the “worst case” loading resulting from a stage-by-stage installation sequence analysis.

8. The temporary works scheme has been designed with reference to the following documents as considered appropriate for the specific design:

British Steel (Arcelor) Piling Handbook; CIRIA Special Publication 95 (1993): The Design & Construction of Sheet-Piled Cofferdams. CIRIA Report C760: Embedded Retaining Walls (replaces CIRIA C580) BS 8002:2015 Code of Practice for Earth Retaining Structures Eurocode 7: Geotechnical design. BS EN 1997 (if specifically requested by the client) BS 6031:2009 Code of Practice for Earthworks

9. The structural resistance of the supporting equipment has been generally designed in accordance with the following standards as considered appropriate to the specific design:

BS 5950 Part1-2000: Structural Use of Steelwork in Building where applicable Eurocode 3: Design of steel structures. BS EN 1993 (part 1) BS EN 14653 (parts 1 & 2) 2005: Manually operated hydraulic shoring systems for groundwork support.

10. Attention is drawn to current safety legislation particularly CDM 2015 regulations & BS 5975:2019 (see also page 2). Appropriate site specific risk assessments must be performed by the contractor. In addition, the excavation must be inspected by a competent person in accordance with statutory requirements. Any defects or signs of deterioration to the support system must be notified to us immediately and work stopped within the excavation.

11. Any installation method statement supplied by GFS will be non-site specific. This will not take into account health and safety matters which should be dealt with in the hirer’s own safety method statement. In addition the method statement should be read in conjunction with the design brief, drawings and equipment installation instructions supplied by Groundforce. Any deviation from these instructions/recommendations should be notified to us for verification of the adequacy of the scheme.


Scheme Specific Notes (to be read in conjunction with risk schedule) 1. This design is based on a “Dig & Lower” method of installation. The final stage solution includes no “toe-in” at

final stage. The trench sheets should be toed-in as far is practical in accordance with good practice at all stages of excavation until at least the second frame is installed in its final location, see relevant drawing from shoring manual for installation sequences.

2. The lower frames must be introduced into the excavation immediately below the top frame and taken down as excavation proceeds until they are at their final position, so as to maintain stability during the installation process (see also residual risk schedule).

3. The analysis is based on a maximum installation clearance (dig level) below the frames of 300mm during installation stages. The excavation must not proceed beyond this level until the entire frame configuration has been installed.

4. The temporary works installation has been modelled providing adequate stability at each intermediate installation stage. No beneficial soil phenomena have been considered to achieve stability during the installation process such as a removal of passive softening of the clay or any form of adhesion/interface friction coefficient.

1) This design includes allowance for the following surcharges:- A uniform surcharge of 20kN/m2 at ground level to allow for general site traffic and o Excavators up to 30 tonne weight working near the excavation.

OR o Excavators up to 20 tonne weight working near the excavation and adjacent road

OR o Excavators up to 20 tonne weight working near the excavation and a simple retaining wall no more than

0.5m high. OR

o NO excavator. Simple wall retaining no more than 1.0m high.

Note: Basic boundary wall (up to 2.0m high) not retaining anything is covered in the first two options. 5. In the interests of design economy, overdig has not been allowed for in the design calculations. The contractor

must therefore ensure that the excavation process is controlled accordingly (see also the residual risk assessment sheet).

6. Our design calculations include an allowance for the lateral load effects of the embankment acting as a surcharge. However as the excavation is at the toe of an embankment it is strongly recommended that a global stability check in the form of a slip circle analysis is carried out so as to model the effects of the reduction in overburden due to the excavation on overall stability of the slope. (see also the residual risk assessment sheet)

7. As soon as the formation level is exposed, it is recommended that blinding concrete should be placed immediately to prevent degradation of the base. It is recommended that measures are taken to prevent possible uplift due to groundwater pressure.

8. The contractor should use a suitable “Bond break” medium such as visqueen, between the concrete and sheeting to aid extraction of equipment.


Residual Risk Schedule

The followings items have been identified as potential residual risks remaining after the design process risk assessment. Based on the information that we have available, we have allocated each risk a rating number depending on its potential to cause a problem. Those with a rating of 2, 3 and 4 are highlighted on the scheme drawing. A further site specific risk assessment must be carried out on these items to assess their importance and potential consequence and to determine a course of action or monitoring in order to mitigate the risk to an acceptable level.

Residual Risk Item Risk Rating Consequences of overdig 2 Surcharge 2 Frame close to Maximum Extension 2 Frame close to Minimum Extension 2 Dig and Lower Solution 2 Unsupported ground at ends of excavation 2

Notes on possible further mitigation action required at site level.

1. Overdig: In the interests of design economy, overdig has not been allowed for in the design calculations. Specific controlmeasures should be put in place to ensure that the dig is not allowed to progress beyond the indicated formation level unlessthe designer is consulted. Alternatively the design can be redesigned to allow for an overdig allowance.

2. Surcharge: A uniform surcharge of 20kN/m2 has been applied at ground level to allow for any of the following surcharges:o Excavators up to 30 tonne weight working near the excavation.

ORo Excavators up to 20 tonne weight working near the excavation and adjacent road

ORo Excavators up to 20 tonne weight working near the excavation and a simple retaining wall no more than 0.5m high.

ORo NO excavator. Simple wall retaining no more than 1.0m high.

If plant exceeds weight limit of 30Te, or total surcharge loading is exceeded design stated values scheme needs to be reassessed.

3. Frames close to maximum extension: The frames are operating near their maximum length. The digging operation must becarefully controlled to ensure that the specified design footprint does not exceed the dimensions stated on the drawings.

4. Frames close to minimum extension: The frames are operating near their minimum length. The digging operation must becarefully controlled to ensure that the specified design footprint stated on the drawings is achieved.

5. Dig and Lower: All frames must be introduced into the excavation immediately, nominally pressurised, and lowered into position as excavation proceeds. The dig depth must not exceed 300mm below the lower frame until it is installed and fully pressurised in its final location. It is recommended that personnel do not enter the excavation during the lowering of the frames and/or digging operation until the frames are installed in their final locations.

6. Unsupported ground at ends of excavation: The ends of the excavation should be battered back a safe angle on all faces toensure stability of the unsupported ground. Alternatively, Waler End Bearers could be utilised to close off the ends of theexcavation, this will require further design assessment and may result in more levels of frame being required. Trench sheetsshould not be placed against the hydraulic cylinders. If none of the above are suitable a four sided excavation, utilisingmanhole brace frames, will be required to ensure stability of the ground.

Key to Risk Rating 1 Unlikely to be a problem 2 Possible problem 3 Probable problem 4 Almost certain to be a problem

Depth 1.50m

0 m

1 m

20 kN/m²

MADE GROUND - Granular - Saturated


0.2m 1.0kN/m-GROUNDFORCE Bracing System


Upstand 0.5 m Key:-Nett Pressure (Max) 15.5kN/m²Bending Moment (Max) -2.6kNm/m

Design Model Bsc Piling No Earth Support - Rigid Calculated on no earth support Design at Construction Stage

Depth of Dig

Groundforce Designer :Groundforce Reference:GR-2F-1.5 Rev AIssued for Construction

GFsafe Version 2.0.16 Copyright VP plc 2010

Issued for Construction.

Support Information Frame 1Level:0.20 mLoad: 1.0 kN/mFrame 2Level:0.90 mLoad: 15.3 kN/m

Sheet Pile Definition

8.5kNm/m > 2.6kNm/m(Bending Capacity is Adequate)Sheet Type: Groundforce Std. SD33

Allowable Moment = 8.5 kNm/mMoment of Inertia = 81.9 cm4/m

Youngs Modulus (E) = 210.0 kN/mm²Allowable Stress = 186.0 kN/mm²Section Modulus = 48.4 cm³/m

Pressure Model: BSC PilingLoad Model: Rigid sheet about lower frame

Support Type: No Earth Support

Title :Manchester Line Works

Contract :Various LocationsContractor:Network Plus Services Lt

Range - See Table

Depth of Excavation =

1.5m

Must be 1.5m or greater

Typical Section

Allowable surcharges

(1 option per side):

· Up to 30 Te Excavator.

· Up to 20 Te Excavator + adjacent

road.

· Up to 20 Te Excavator + simple

retaining wall no more than 0.5m

high.

· NO Excavator. Simple wall retaining

no more than 1.0m high.

Note: Basic boundary wall (up to

2.0m) not retaining anything is

covered in first two options

EdgeSafe

as required

Safe access/egress

must be provided

Frame 1 -0.2m

Frame 2 -0.9m

Davit Arm - Has an emergency

rescue system been considered?

(Sheets will require doubling up at

clamp location if SD33 utilised)

Schedule of Weights: Sheets

Groundforce SD33

Description: Weight per

item (kg/m)

10.9

Groundforce KD422.1

Schedule of Weights: Installation Equipment

Driving Cap


item (kg)

7

Quick Release Shackle 19

Standard Extractor11

Lifting Chain-

Face of existing Building

/ Edge (not including

construction plant)

RESTRAINT CHAINS No.

RESTRAINING CHAINS

(To be attached at these

locations in accordance with

the installation instructions)

4

Must NOT to be used

for lifting purposes

Values per Frame

1.50m B.G.L.

Groundwater not anticipated

Note: If soil properties and water level

varies significantly from those illustrated

please seek advice immediately

0.00m B.G.L.

Made Ground Granular

(Well compacted)

BOXSHEET

MINI

LADDERSAFE

Clearance - See Table

Sheet to Sheet - See Table

GROUNDFORCE WALER

Trench W

idth - See Table

Plan View of Frames

Typical Layout - WLL - See Table

GROUNDFORCE WALER

The ends of the excavation should be battered

back at a safe angle (to be determined by the

contractor). Alternatively, the ends can be

sheeted by using suitable waler end bearers.

Schedule of Weights: Waler End Bearers

Waler End Bearer Type AA

Description: Sheet to Sheet

Range (m)

0.55 - 0.69

Weight per

item (kg)

8.7

Waler End Bearer Type AB0.65 - 0.85 10.0

Waler End Bearer Type BB0.98 - 1.28 14.1

Waler End Bearer Type CA1.30 - 1.75 19.0

Waler End Bearer Type CB1.70 - 2.20 22.9

WLL

(kN/m)

63.7

Waler End Bearer Type BA0.78 - 1.03 12.0

Schedule of Weights: Walers

2.0m Aluminium Waler


Range (m)

0.55 - 4.0

Values per Frame

Clear

Opening (m)

1.49

Weight per

item (kg)

59 - 190

3.0m Aluminium Waler0.55 - 4.0 2.45 81 - 212

3.9m HD Steel Waler0.85 - 4.3 3.2 307 - 325


5.0m STD Steel Waler0.75 - 4.2 4.3 454 - 472

5.0m HD Steel Waler0.85 - 4.3 4.3 338 - 406

5.0m SHD Steel Waler0.85 - 4.3 4.3 558 - 576

WLL

(kN/m)

63.7

23.6

40.4

29.7

18.0

28.0

32.0

63.7

63.7

59.2

40.6

27.4

Values per Leg

Groundforce Technical,

Ailsa House, Turnberry Park,

Leeds, LS27 7LE

Tel: +44 (0)113 259 7440

Fax: +44 (0)113 252 6538

www.groundforce.uk.com

[email protected]

Notes.

1. Please refer to the selection flowcharts of this

manual to ensure that this design is suitable for use.

2. A detailed site specific risk assessment must be

carried out prior to commencing work.

3. Lifting operations must be carried out in a safe

manner and in accordance with Contractor's own

procedures.

4. Assumed Installation Method: Dig and Lower (See

General Method Statement)

5. Two levels of frame are installed in the excavation at

0.2m and 0.9m B.G.L. respectively

6. A general surcharge of 20.0kN/m² has been allowed

for. This will account for most common site equipment.

If abnormal surcharges are likely to be present, seek

further advice from Groundforce.

7. If any of the conditions assumed differ from those

encountered on site, re-assessment of the shoring

requirements must be undertaken by a competent

person.

8. Removal is the reverse of the installation process

ensuring material is backfilled and compacted in layers

as extraction proceeds.

Client:

Project:

Title:

Rev:Drawing Ref:

Checked by:

Drawn by:

Designed by: Drawing Status:

ChkDrwDesRev Comments

12345678

A

12345678

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

A

Approved

ISSUED FOR CONSTRUCTION

(& APPROVED BY:)

Groundforce:

Other (if required):

APG

-

DO NOT SCALE FROM DRAWING. IF IN DOUBT, ASK

General Design

Network Plus Serivecs Ltd

ARL

ARL

DRP

GR-2F-1.5-W A

Granular Ground - 1.5m Deep

Two Frames - Walers

A Issued for Construction ARL ARL DRP

- - - - -

- - - - -

Depth 2.00m

0 m

1 m

2 m

20 kN/m²



E Bracing System


0.3m (±0.2m) 0.9kN/m-GROUNDFORCE Bracing System

Key:-Nett Pressure (Max) 18.7kN/m²Bending Moment (Max) -5.4kNm/m


Depth of Dig

Groundforce Designer :Groundforce Reference:GR-2F-2.0 Rev A Issued for Construction



Support Information Frame 1Level:0.30 mLoad: 0.9 kN/mFrame 2Level:1.20 mLoad: 23.9 kN/m


8.5kNm/m > 5.4kNm/m(Bending Capacity is Adequate)Sheet Type: Groundforce Std. SD33

Allowable Moment = 8.5 kNm/mMoment of Inertia = 81.9 cm4/m


Pressure Model: BSC PilingLoad Model: Rigid sheet about lower frame




Frame 1 -0.3m

± 0.2m

Frame 2 -1.2m


Groundforce SD33


item (kg/m)

10.9

Groundforce KD4 22.1


Driving Cap


item (kg)

7



Lifting Chain-


RESTRAINING CHAINS




4

Must NOT to be used


Values per Frame

Range - See Table


2.0m


Typical Section





road.



high.






EdgeSafe

as required

BOXSHEET

MINI

LADDERSAFE



(Sheets will require doubling up at

clamp location if SD33 utilised)

Safe access/egress

must be provided



construction plant)

2.00m B.G.L.





0.00m B.G.L.


(Well compacted)



GROUNDFORCE WALER

Trench W

idth - See Table

Plan View of Frames


GROUNDFORCE WALER








Range (m)

0.55 - 0.69

Weight per

item (kg)

8.7


Waler End Bearer Type BB0.98 - 1.28 14.1

Waler End Bearer Type CA1.30 - 1.75 19.0

Waler End Bearer Type CB1.70 - 2.20 22.9

WLL

(kN/m)

63.7

Waler End Bearer Type BA0.78 - 1.03 12.0




Range (m)

0.55 - 4.0

Values per Frame

Clear

Opening (m)

1.49

Weight per

item (kg)

59 - 190

3.9m HD Steel Waler0.85 - 4.3 3.2 307 - 325


5.0m HD Steel Waler0.85 - 4.3 4.3 338 - 406

5.0m SHD Steel Waler0.85 - 4.3 4.3 558 - 576

WLL

(kN/m)

63.7

40.4

29.7

28.0

32.0

63.7

63.7

59.2

40.6

27.4

Values per Leg



Leeds, LS27 7LE

Tel: +44 (0)113 259 7440

Fax: +44 (0)113 252 6538


[email protected]

Notes.







procedures.












person.




Client:

Project:

Title:

Rev:Drawing Ref:

Checked by:

Drawn by:

Designed by: Drawing Status:


12345678

A

12345678

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

A

Approved


(& APPROVED BY:)

Groundforce:


APG

-


General Design

ARL

ARL

DRP

GR-2F-2.0-W A


Two Frames - Walers


- - - - -

- - - - -

Network Plus Serivecs Ltd

Depth 2.50m

0 m

1 m

2 m

20 kN/m²



0.5m 6.4kN/m-GROUNDFORCE Aluminium Waler (5.0m Long)(30.0m x 3.0m)




Depth of Dig

GroundforceSoftware Licensed to:aali96



Designer :GroundforceReference:GR-2F-2.5Date:13/01/2020Construction Stage Rev: 01



Support Information Frame 1Type: Aluminium WalerLevel:0.50 mWLL: 29.7 kN/mLoad: 6.4 kN/m Frame 2Type: Aluminium WalerLevel:1.70 mWLL: 29.7 kN/mLoad: 28.6 kN/m


19kNm/m > 6.4kNm/m(Bending Capacity is Adequate)

Sheet Type: Groundforce KD4Allowable Moment = 19.0 kNm/mMoment of Inertia = 254.0 cm4/m


Pressure Model: BSC PilingLoad Model: Hinge Method - Rigid sheet about lower fra


Frame 1 -0.5m

-

Frame 2 -1.7m



item (kg/m)

Groundforce KD422.1


Driving Cap


item (kg)

7



Lifting Chain-


RESTRAINING CHAINS




4

Must NOT to be used


Values per Frame

Range - See Table


2.5m


Typical Section





road.



high.






EdgeSafe

as required

BOXSHEET

MINI

LADDERSAFE



Safe access/egress

must be provided



construction plant)

2.50m B.G.L.





0.00m B.G.L.


(Well compacted)



GROUNDFORCE WALER

Trench W

idth - See Table

Plan View of Frames


GROUNDFORCE WALER








Range (m)

0.55 - 4.0

Values per Frame

Clear

Opening (m)

2.9

Weight per

item (kg)

123 - 254

3.9m HD Steel Waler 0.85 - 4.3 3.2 307 - 325

WLL

(kN/m)

29.7

40.4




Range (m)

0.55 - 0.69

Weight per

item (kg)

8.7


Waler End Bearer Type BB 0.98 - 1.28 14.1

Waler End Bearer Type CA 1.30 - 1.75 19.0

WLL

(kN/m)

63.7

Waler End Bearer Type BA 0.78 - 1.03 12.0

63.7

63.7

59.2

40.6

Values per Leg



Leeds, LS27 7LE

Tel: +44 (0)113 259 7440

Fax: +44 (0)113 252 6538


[email protected]

Notes.







procedures.












person.




Client:

Project:

Title:

Rev:Drawing Ref:

Checked by:

Drawn by:

Designed by:Drawing Status:


12345678

A

12345678

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

A

Approved


(& APPROVED BY:)

Groundforce:


APG

-


General Design

Network Plus Services Ltd

ARL

ARL

DRP

GR-2F-2.5-W A


Two Frames - Walers


- - - - -

- - - - -

Depth 3.00m

0 m

1 m

2 m

3 m

20 kN/m²





Frame Load sharing with Frame 3 at level 2.2m ,





Depth of Dig




Designer :Groundforce Reference:GR-3F-3.0 Date:13/01/2020 Construction Stage Rev: 01



Support Information Frame 1Type: Aluminium WalerLevel:0.50 mWLL: 23.6 kN/mLoad: 11.7 kN/m Frame 2Type: Aluminium WalerLevel:1.70 mWLL: 23.6 kN/mLoad: 14.0 kN/m Frame 3Type: Aluminium WalerLevel:2.20 mWLL: 23.6 kN/mLoad: 21.0 kN/m







Frame 1 -0.5m

-

Frame 2 -1.7m


RESTRAINING CHAINS




4

Must NOT to be used


Values per Frame

Range - See Table


3.0m


Typical Section





road.



high.






EdgeSafe

as required

BOXSHEET

MINI

LADDERSAFE



Safe access/egress

must be provided



construction plant)



item (kg/m)



Driving Cap


item (kg)

7



Lifting Chain-

3.00m B.G.L.





0.00m B.G.L.


(Well compacted)

Frame 3 -2.2m



GROUNDFORCE WALER

Trench W

idth - See Table

Plan View of Frames


GROUNDFORCE WALER








Range (m)

0.55 - 4.0

Values per Frame

Clear

Opening (m)

2.45

Weight per

item (kg)

81 - 212

WLL

(kN/m)

23.6




Range (m)

0.55 - 0.69

Weight per

item (kg)

8.7

Waler End Bearer Type AB 0.65 - 0.85 10.0


WLL

(kN/m)

63.7


63.7

63.7

59.2

Values per Leg



Leeds, LS27 7LE

Tel: +44 (0)113 259 7440

Fax: +44 (0)113 252 6538


[email protected]

Notes.







procedures.



5. Three levels of frame are installed in the excavation

at 0.5m, 1.7m and 2.2m BGL respectively








person.




Client:

Project:

Title:

Rev:Drawing Ref:

Checked by:

Drawn by:



12345678

A

12345678

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

A

Approved


(& APPROVED BY:)

Groundforce:


APG

-


General Design


AAAAJSP

GR-3F-3.0-W A


Two Frames - Walers

A Issued for Construction AA AA JSP

- - - - -

- - - - -

Depth 3.50m

0 m

1 m

2 m

3 m

20 kN/m²







Frame Load sharing with Frame 2 at level 2m ,



Depth of Dig

Frame 2 & 3 positions: +- 0.1m




Designer :Groundforce Reference:GR-3F-3.5 Date:13/01/2020 Construction Stage Rev: 01



Support Information Frame 1Type: Aluminium WalerLevel:0.50 mWLL: 29.7 kN/mLoad: 13.8 kN/m Frame 2Type: Aluminium WalerLevel:2.00 mWLL: 29.7 kN/mLoad: 18.4 kN/m Frame 3Type: Aluminium WalerLevel:2.50 mWLL: 29.7 kN/mLoad: 27.6 kN/m







Frame 1 -0.5m

-

Frame 2 -2.0m

+-0.1


RESTRAINING CHAINS




4

Must NOT to be used


Values per Frame

Range - See Table


3.50

m


Typical Section





road.



high.






EdgeSafe

as required

BOXSHEET

MINI

LADDERSAFE



Safe access/egress

must be provided



construction plant)



item (kg/m)



Driving Cap


item (kg)

7



Lifting Chain-

3.50m B.G.L.





0.00m B.G.L.


(Well compacted)

Frame 3 -2.5m

+-0.1



GROUNDFORCE WALER

Trench W

idth - See Table

Plan View of Frames


GROUNDFORCE WALER








Range (m)

0.55 - 4.0

Values per Frame

Clear

Opening (m)

2.9

Weight per

item (kg)

123 - 254

WLL

(kN/m)

29.7




Range (m)

0.55 - 0.69

Weight per

item (kg)

8.7

Waler End Bearer Type AB 0.65 - 0.85 10.0


WLL

(kN/m)

63.7


63.7

63.7

59.2

Values per Leg



Leeds, LS27 7LE

Tel: +44 (0)113 259 7440

Fax: +44 (0)113 252 6538


[email protected]

Notes.







procedures.



5. Three levels of frame are installed in the excavation

at 0.5m, 2.0m and 2.5m BGL respectively








person.




Client:

Project:

Title:

Rev:Drawing Ref:

Checked by:

Drawn by:



12345678

A

12345678

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

A

Approved


(& APPROVED BY:)

Groundforce:


APG

-


General Design


AA

AAJSP

GR-3F-3.5-W A


Two Frames - Walers

A Issued for Construction AA AA JSP

- - - - -

- - - - -


Liability Statement

This design has been prepared by the Groundforce Shorco (GFS) technical department in accordance with their documented design procedure (a copy of which is available on request). Great care has been taken to provide a safe and workable solution in accordance with the principles set out in BS 5975:2019 section 13 and the Construction (Design and Management) Regulations 2015 as far as is reasonably possible.

The Hirer should note that they have a duty under CDM and BS 5975 to provide a comprehensive design brief. The design brief has been interpreted at face value and therefore no attempt has been or can be made to check the validity or completeness of any information provided in the design brief unless there is insufficient information in order to prepare a design.

The calculations and drawings given in support of the equipment usage is based solely on the information provided by the hirer contained within the design brief. Therefore the stability of the suggested configurations is solely dependent on the validity and accuracy of this information. It is essential therefore that the hirer or his representative checks carefully the information provided within this document to ensure that the scheme is practical and workable.

Any changes to site conditions or other information provided by the Hirer, which may affect the outcome, must be notified to GFS immediately. GFS reserves the right to nullify and withdraw the advice or configurations without notice for any changes to information either notified or otherwise. If the Hirer fails to notify GFS of such changes which the Hirer knew or ought reasonably to have known, GFS take no further responsibility whatsoever for the continued use of the equipment.


Internal Checking Certificate Internal Check: Category 2a This design has been prepared by the Groundforce Shorco (GFS) technical department based on the agreed design brief supplied in accordance with their documented design procedure (a copy of which is available on request). Great professional skill and care has been taken to provide a safe and workable solution in accordance with the principles set out in BS 5975:2019 and the Construction (Design and Management) Regulations 2015 as far as is reasonably possible. The shoring temporary works scheme is described by the documents referenced below

o Temporary Works Design Document: 77214/LF C01

o Drawing(s): GR-2F-1.5-W, GR-2F-2.0-W, GR-2F-2.5-W, GR-3F-3.0-W and GR-3F-3.5-W

I certify that reasonable professional skill and care has been used in the design of the Temporary Works scheme identified and described by the above referenced drawings and other documents:

Signed:

Name: Aneesah Ali

Date: 14/01/20

Title / Position: Graduate Engineer (Shoring North)

I certify that reasonable professional skill and care has been used in the checking to Category 2a of the Temporary Works scheme identified and described by the above referenced drawings and other documents.

Signed:

Name: Emma McKeen

Date: 14/01/20

Title / Position: Design Manager (Shoring North)

I certify that the staff who have completed the above design and check are competent to carry out their duties and that they have exercised reasonable professional skill, care and diligence under CDM 2015.

Signed:

Name: Tony Gould BSc (Hons) CEng FICE

Date: 14/01/20

Title / Position: Technical Director

design statement - manchester line works walers

Documents