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Method Statement for Piling Work

Piling Works Method Statement | Standard Operating Procedure

PILING WORKS

METHOD STATEMENT / STANDARD OPERATING PROCEDURE

Project
Piling Works
Document
Method Statement
Revision
01
Applicable Standards
IS 456, IS 2314, IS 5121, IS 1200

1. Revision Status

Revision Date Description Status
00 10-05-2008 Initial Issue for Review & Approval Approved

2. Scope & Objectives

This Method Statement describes the complete procedure for executing Piling Works safely, efficiently and in accordance with approved drawings, project specifications and applicable Indian Standards.

Objectives
  • Ensure safe execution of piling works.
  • Maintain required quality standards.
  • Achieve required pile capacity.
  • Maintain dimensional accuracy.
  • Comply with approved specifications.
  • Provide proper inspection and documentation.

3. Reference Standards

  • Project Technical Specifications
  • Approved Construction Drawings
  • IS 456 : 2000 Plain and Reinforced Concrete Code
  • IS 2314 : 1986 Steel Sheet Piling Sections
  • IS 5121 : Safety Code for Piling and Deep Foundations
  • IS 1200 (Part 23) Method of Measurement of Piling Works
  • Applicable Contract Specifications

4. Definitions

Abbreviation Meaning
MS Method Statement
QCP Quality Control Procedure
ITP Inspection & Test Plan
Note: All construction activities shall comply with the approved Method Statement, Quality Plan, Inspection & Test Plan, Health Safety & Environment Plan and Project Specifications.

5. Health & Safety Hazards

Specific Health, Safety and Environmental (HSE) requirements shall be implemented throughout all piling activities. All personnel shall comply with the approved Project Safety Plan and statutory regulations.

Potential Hazards
  • Movement of piling rigs and heavy machinery.
  • Working near suspended loads.
  • Pile collapse during lifting or pitching.
  • Excavation collapse.
  • Noise and vibration during pile driving.
  • Flying debris from hammer impact.
  • Electrical hazards from nearby utilities.
  • Fire hazards during gas cutting and welding.
  • Working at height while handling piles.
  • Poor housekeeping causing slips and trips.

6. Responsibilities

6.1 Project Engineer

  • Execute piling work according to approved drawings and specifications.
  • Ensure all manpower, equipment and materials are available.
  • Coordinate with Client, Consultant and Project Manager.
  • Ensure quality control requirements are followed.
  • Ensure all HSE requirements are implemented.

6.2 Site Engineer

  • Supervise daily piling activities.
  • Provide work instructions to construction team.
  • Monitor progress against project schedule.
  • Coordinate inspections with QA/QC Engineer.
  • Maintain proper alignment and pile locations.
  • Coordinate with Surveyor.

6.3 QA / QC Engineer

  • Inspect completed works.
  • Verify compliance with specifications.
  • Maintain inspection records.
  • Arrange client inspections.
  • Approve completed stages before proceeding.

6.4 Safety Engineer

  • Implement Project HSE Plan.
  • Conduct toolbox talks.
  • Inspect work areas regularly.
  • Ensure PPE compliance.
  • Investigate unsafe conditions.
  • Maintain safe working environment.

6.5 Foreman

  • Allocate manpower.
  • Coordinate with Site Engineer.
  • Monitor daily productivity.
  • Ensure safety compliance.
  • Report unforeseen issues immediately.

6.6 Surveyor

  • Establish benchmarks.
  • Carry out pile setting-out.
  • Verify pile coordinates.
  • Maintain survey records.
  • Monitor verticality and alignment.

7. Procedure / Method to be Employed

7.1 Preliminary Works

  • Review approved drawings.
  • Verify benchmark coordinates.
  • Locate all pile positions.
  • Mark pile centers accurately.
  • Check existing underground utilities.
  • Arrange access roads for piling rig.
  • Ensure working platform is stable.
Important
Pile locations shall be checked jointly by Surveyor, Site Engineer and Consultant before commencement of piling.

7.2 Trial Pile Driving Test

  • Carry out trial pile before production piling.
  • Use approved piling equipment.
  • Drive pile up to design bearing strata.
  • Record penetration for every hammer blow.
  • Measure rebound.
  • Measure penetration depth.
  • Prepare Trial Pile Driving Report.
  • Obtain Consultant approval.
Observation Requirement
Penetration Depth Record Continuously
Hammer Blow Count Every 50 cm
Pile Rebound Record
Final Bearing Verify with Bore Log

7.3 Review of Trial Results

  • Review pile capacity.
  • Review penetration rate.
  • Confirm pile length.
  • Confirm hammer suitability.
  • Revise pile specifications if required.
  • Obtain Engineer approval before production piling.

7.4 Pile Driving Equipment

  • Hydraulic Rig
  • Diesel Hammer
  • Hydraulic Hammer
  • Pile Leads
  • Pile Cushion
  • Steel Casing
  • Crane
  • Survey Instruments
Equipment Requirement

The selected hammer shall be capable of achieving the required penetration and bearing capacity without causing structural damage to the pile.

7.5 Production Pile Driving

  • Lift pile safely.
  • Position accurately over pile mark.
  • Check verticality before driving.
  • Maintain hammer alignment.
  • Continue driving without unnecessary interruption.
  • Record blow count.
  • Monitor penetration.
  • Monitor pile movement continuously.
  • Protect pile head using approved cushion.
  • Replace damaged cushion immediately.
Stop Work Immediately If
  • Pile damage is observed.
  • Unexpected obstruction is encountered.
  • Specified penetration cannot be achieved.
  • Pile deviates beyond permissible limits.
  • Equipment malfunction occurs.

7.6 Driving Sequence

  • Drive piles from interior towards outside.
  • Avoid excessive ground displacement.
  • Prevent damage to adjacent piles.
  • Prevent excessive soil densification.

7.7 Verticality Requirements

Parameter Requirement
Pile Verticality 1 : 100 Maximum
Central Position ±100 mm
Pile Head Level ±10 mm

8. Material Requirements

Material Specification
Cement Fresh Ordinary Portland Cement conforming to relevant IS Specifications.
Coarse Aggregate Approved graded aggregate.
Fine Aggregate Clean natural sand conforming to specifications.
Water Clean potable water free from harmful salts and impurities.
Reinforcement Steel Approved grade as per structural drawings.
Quality Requirement All materials shall be approved before use and accompanied by relevant test certificates wherever applicable.

9. Equipment Requirements

  • Survey Instruments
  • Hydraulic Piling Rig
  • Diesel Hammer
  • Hydraulic Hammer
  • Crane
  • Transit Mixer
  • Concrete Pump
  • Steel Casing
  • Tremie Pipe
  • Auger
  • Gas Cutter
  • Pneumatic Hammer
  • Vibrator Needles
  • Jack Hammer
  • Wooden Floats
  • Trowels
  • Pick and Carry Crane

10. Health & Safety Provisions

  • Safety shall receive the highest priority throughout piling operations.
  • Only trained and authorized personnel shall operate equipment.
  • All workers shall wear mandatory PPE.
  • Barricading and warning signs shall be installed around work areas.
  • Excavations shall be properly protected against collapse.
  • Maintain safe distance from operating piling rigs.
  • Daily equipment inspections shall be conducted.
  • Fire extinguishers shall be available during gas cutting and welding.
  • Good housekeeping shall be maintained throughout the site.
  • Emergency response procedures shall be communicated to all workers.
PPE Mandatory
Safety Helmet
Safety Shoes
Reflective Jacket
Safety Gloves
Eye Protection
Ear Protection As Required
Safety Harness When Working at Height

11. QA / QC Documentation

  • Approved Method Statement.
  • Inspection & Test Plan (ITP).
  • Quality Control Procedure (QCP).
  • Approved Material Test Reports.
  • Pile Driving Records.
  • Survey Records.
  • Pile Location Records.
  • Concrete Cube Test Reports.
  • Pile Integrity / Load Test Reports (where applicable).
  • Daily Inspection Reports.

12. Supporting Documentation

  • Contract Specifications.
  • Approved Construction Drawings.
  • Method Statement.
  • Inspection & Test Plan.
  • Quality Control Procedure.
  • Project Quality Plan.
  • Project HSE Plan.

13. Distribution

Copies of this Method Statement shall be distributed to the following personnel:

  • Management Representative
  • Project Manager
  • Project Engineer
  • Site Engineer
  • QA/QC Engineer
  • HSE Engineer
  • Survey Team
  • Client / Consultant

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