RAMSPROZONE-METHOD STATEMENT FOR PILING WORKS

RAMSPROZONE – METHOD STATEMENT FOR PILING WORKS (Free, Editable & Ready-to-Use Format)

We are pleased to announce the release of RAMSPROZONE – Method Statement for Piling Works, now available for free download exclusively on HSE Documents – your trusted global platform for high-quality health, safety, environment, and engineering documentation.

This comprehensive method statement covers bored cast-in-situ pile installation using mechanical rotary rigs, including: mobilization, temporary casing installation, drilling/boring, reinforcement cage placement, tremie concrete pouring, inspection & testing (PIT, ultrasonic, static load tests), HSE requirements, and quality control measures. All company names, contractor names, and personnel identifiers have been replaced with the placeholder RAMSPROZONE, making the document fully editable, ready to use, and immediately adaptable to your project needs.

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Join thousands of global users – download your free, editable copy today at HSE Documents and streamline your piling works approval process.

Table of Content 

1.0. Objective

2.0.Scope of Works

3.0.References

4.0.Preparation

5.0.Resources

6.0.Equipment

7.0.Roles & Responsibilities:

8.0.Safety Precautions:

8.1.Objective

8.2.H.S.E Requirements:

9.0.Control Measures

10.0. Work Methodology

10.1. Sequence of Piling Work

10.2. Prior to work

10.3. Pre-Mobilization Activities

10.4. Survey

10.5. Mobilization and Erection of Plant, Equipment’s

10.6. Temporary Casing Installation

10.7. Drilling by Rig Machine

10.8. Reinforcement

10.9. Pouring of Concrete

11.0. Inspection and Testing:

12.0. Related Forms:

13.0. Attachments:

1.0. Objective

To provide a detailed description of Pilling works methods to ensure that the work is performed in a safe, professional and controlled manner.

2.0. Scope of Works

This procedure covers Mobilization, Installation of piles, Inserting of Prefabricated reinforcement steel cages and concrete of 600 mm Diameter piles.

3.0. References

3.1 Contract Specification

3.2 All relevant applicable BS, ACI & ASTM codes for various civil works

3.3 Approved drawings

4.0. Preparation

RAMSPROZONE will produce a programme of works such that clients are aware of proposed area of work can advise on logistical constraints imposed by other departments

5.0. Resources

All the materials used in permanent works shall be approved before using at site. Subcontractor approval shall be sought, if any subcontracting jobs are involved in this scope. Before starting the work, it will ensure that all the shop drawings are approved.

6.0. Equipment

• Hydraulic drilling Rig
• Skid steer loader
• Crawler crane
• Vibro Hammer with power pack
• Rock Auger & Bucket
• Casing pipes
• Survey Equipment’s with necessary accessories
• Welding Generator
• Other Tools & Tackles
• Hand Tools (If any)

7.0. Roles & Responsibilities:

7.1. Role Responsibility

• Project Manager: bear overall responsibility for timely and quality execution of works and ensures the effective use of resources and manpower
• Project Engineer: To ensure all operations are in accordance with the relevant Project contract specifications and this method statement and check the accuracy of the works done by the site engineers
• Site Engineer: To ensure that all earth works are carried out as per the approved shop drawings. Coordinate with surveyors for accuracy of the work
• OA/QC Engineer: To ensure that the work is carried out as per the specifications. Necessary tests are to be carried out for conformity and results are to be provided to the Engineer.
• HSE Officer: To ensure that the work is carried out in a safe manner. Give necessary guidelines to the workforce and facilitate safe working condition
• Foreman: To ensure carrying out the work with proper control over labor and equipment’s. Coordinate with surveyor for accuracy of the work
• Surveyor: To ensure that the work is being carried out accurately as per the approved shop drawings in coordination with Site Engineers and Foreman

8.0. Safety Precautions:

8.1. Objective

To ensure that all safe practices are adhered to, as per standard operating procedures, Safety Management Plan and contractual obligations while carrying out installation of Piles.

8.2. H.S.E Requirements:

• The following are the H.S.E. requirements for Piling Works:
• Proper barricades shall be provided for the working area to prevent unauthorized access.
• Warning signs shall be fixed near the excavation.
• A signalman shall be deployed where the vision of the heavy equipment’s is hindering.
• All employees shall be provided with safety inductions before entering the site.
• All vehicles entering the site shall be fit and adhere with safety requirements and preapproved RAMSPROZONE
• All operators/ drivers should have current valid RAMSPROZONE.
• All personnel shall wear PPEs, i.e. safety jackets, safety shoes, helmets.

9.0. Control Measures

• Ensure all permissions and consents have been obtained
• Ensure approval status of QAP
• Ensure approval status of this method statement has been received
• Ensure approval status of ITP
• Ensure maintain a system of records that permit verification of any issued report before and after work
• Ensure all plants are escorted to work site by qualified banksman
• Ensure work area is cordoned off
• Site briefings will be undertaken to induct all operatives in the detail of his method statement. All personal attending will sign on the briefing sheet acknowledging they understand the briefing given.

10.0. Work Methodology

10.1. Sequence of Piling Work

Prior to work → Pre- Mobilization Activities → Preliminary Survey → Mobilization and Erection of Plant, Equipment’s → Installation of Temporary Casing → Drilling/Boring → Installation of Reinforcement Cage with accessories → Pouring of Concrete → Demobilization of Plant & Equipment’s and Man powers.

10.2. Prior to work

• A certificate or permit shall be obtained from the authority concerned, in accordance with all the requirements of the Client.
• Where applicable, temporary or permanent rerouting shall be provided for above ground and underground services. For this purpose, exploration pit shall be made for known underground services
• Internal traffic arrangements will be made in the work site area with the assistance of safety personnel.
• Remove all surface obstructions and unsuitable materials such as debris, rubble, shrubs, hedges, trees, stumps, and roots and surface shall be levelled
• Area shall be verified & cleared from underground services.
• Survey the area & spot level readings of OGL recorded.
• Care shall be taken so that the site clearance does not affect the foundation of existing adjacent structures (if present).
• Suitable temporary access shall be provided for all construction activities.

10.3. Pre-Mobilization Activities

• The piling shall be carried out from the working platform level or dry level excavated platform level as per suitability of execution.
• Pile setting out drawings shall be provided by RAMSPROZONE and the survey for pile points shall be done by RAMSPROZONE.
• Foundation layout drawing shall indicate working platform level, cut-off level, top of reinforcement, reinforcement detailing and shall be duly approved by the Engineer / Client.
• Approved Drawings shall be used for execution purpose.
• Pile length and rock socketing shall also be indicated in the approved pile design.
• Access to the work areas shall be kept unobstructed and clear at all times so that the work can be inspected by the Engineer/Client as and when required.

10.4. Survey

• Pile points shall be established by main Contractor and marked using steel pins as per a preapproved setting- out drawing.
• Pile points, locations and elevations shall be checked as deemed necessary by the Engineer/Client.
• Pile shall not deviate  1% in vertical direction and shall not deviate more than75 mm  in any direction on plan.
• Existing underground services’ location shall be marked on the ground and reference points shall be established and to be visible.

10.5. Mobilization and Erection of Plant, Equipment’s

• Crawler and Rig machine shall be mobilized to the location and erected st site.
• Third party inspection will be carried out prior to starting the activities
• The rig will be positioned at pile point with required boring tool attached to the Kelly.
• Three no’s of offset pins will be positioned at a 2.0 to3.0 m  distance, and at right angles to the pile positions pin. (This is to ensure that position is not lost when casings are being placed.) They will be used as reference points.
• Vertically, of mast shall be checked using controls in the operator's cabin before commencement of drilling operation and as and when deemed fit during drilling operation.

10.6. Temporary Casing Installation

• Depending upon the ground conditions, an initial pre- bore of suitable depth if required shall be made before installation of temporary casing.
• Temporary casing of adequate length shall be available at site.
• The Temporary Casing length may vary based on the subsurface conditions.
• The casing shall be installed by Vibro hammer or by rotary rig using casing adopter attached to its rotary with reference to offset pins and spirit level to ensure that the pile shall not deviate 1%  in vertical direction.
• Once the casing has achieved the required depth, final checking will be made on this position.
• The casing top will generally be kept about600 mm above the ground level.

10.7. Drilling by Rig Machine

• Installation/drilling of pile will be carried out only after the installation of temporary casing pipes as described in the previous point no. 10.5
• For boring through soil strata soil auger/ bucket will be used. As rock is encountered rock auger/ rock bucket replaces the soil auger/ soil bucket and boring continues till termination depth.
• As soon as rock strata for socketing of piles are met with, the depth will be measured and the boring through such rock will be continued up to a depth as per the pile design and approved shop drawings.
• At the termination level the pile bottom will be cleaned using cleaning bucket and the final depth measurement will be jointly recorded.

Tolerance: No piles shall not deviate more than 1 in 75 in vertical direction and shall not deviate more than 75 mm in plan in any direction.

Disposal of Excavated Material: Disposal of Excavated/Boring materials shall be disposed off as per the project HSE Plan.

10.8. Reinforcement

• Epoxy coated high yield strength deformed bars cages as per drawings shall be prepared in accordance with a pre- approved shop drawing & BBS.
• Reinforcements shall be made up into stiff cages using stiffener rings at suitable intervals, main reinforcement sufficiently well wired at suitable points to withstand handling without any distortion or damage.
• They would be placed in position and be supported away from the sides of the pile shaft by means of spacer blocks.
• The steel reinforcement cages of required grade shall be provided by the main contractor along with concrete cover blocks and PVC sleeves.
• Steel above cut off level shall be protected from the concrete/weather by wrapping polythene sheet under the PVC sleeves.
• Normal lap between reinforcement cages will be as per specifications.
• The main reinforcing steel would project for a length sufficient to develop bond above the cut off level of the pile as shown in the approved shop drawings.
• The clear concrete cover to helical reinforcement will be as per project specification and suitable approved spacer blocks will be provided at intervals not exceeding 2m and wired to the helical / rings.
• For ultrasonic integrity test on pile purpose, MS ducts will be jointed using welding and tied together with reinforcement cage

10.9. Pouring of Concrete

• Ready mix Concrete of C40 grade will be used for concreting of piles.
• Concrete of required grade will be brought to the site by transit mixers.
• Concreting shall be poured in a single continuous operation so there will not be any construction/cold joints.
• The Record/Data Sheet of Concrete from RMC wherein the details such as name of RMC supplier, transit mixer number, quantity of concrete received, batching time, concrete arrival time shall be provided (one copy) to the Consultant/Client.
• The concrete will be placed in the pile bore by tremmie method.
• Casing position shall be checked and recorded before starting concrete.
• The tremmie pipe should clean and watertight throughout the length and shall not be less than 50 mm dia. for concrete work.
• The tremmie pipe shall be attached directly to the concrete pump and is held by crane for lowering and lifting.
• The tremmie pipe, attached to the concrete pump, will be lowered to the pile bore till toe of the pile and raised approximately 200 mm off the bottom (to allow concrete to flow).
• Once sufficient concrete is pumped in, tremmie pipe will be gradually raised ensuring that the tremmie pipe is always at a minimum of 3.0 m into the concrete and a maximum of 6.0 m as per the provisions of ICE "Specifications for Piling and Embedded Retaining Walls".
• The lifting operation / movement of the tremmie pipe shall be in tandem with the lifting of boom of the concrete pump. Pumping of concrete will continue until sound concrete is observed.
• The casing shall be withdrawn initially for1.0-2.0 m  then the hose of the concrete pump shall be inserted into the casing to complete the balance concreting.
• Then, the crane with Vibro Hammer shall move to the pile location and the casing shall be fully withdrawn.
• The crane with casing shall be moved to next pile bore location where an initial pre bore was done. The casing shall be placed in the pre bore and the above point 11 (Installation of Temporary Casing) and point no. 15 (Formation of pile) shall be repeated.

Deviation

The permissible Deviation Level/ Tolerances for finished concrete works shall be as per site requirements/ Specification/ drawings

11.0. Inspection and Testing:

• All sampling and testing of concrete will be carried out as per the technical specification and approved QA/QC Plan in accordance with relevant code provisions.
• Before placing the concrete in the pile bore workability of concrete for each batch will be checked using slump cone.
• All pile testing shall be conducted at the frequency specified in Project Specifications. Test piles will be selected by the Engineer at random and nominated immediately prior to casting.
• Low strain Integrity Test shall be carried for 100% of installed piles in compliance with specifications after 7 days of concreting.
• Ultrasonic Integrity Test on piles shall be carried out on 10%  of Piles. ASTM codes shall be followed.
• Pile Static load test shall be carried on preliminary pile.

12.0. Related Forms:

• Approved shop drawings.
• Inspection request.

13.0. Attachments:

• Risk Assessment

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