BORED PILING METHOD STATEMENT.
WORK PROCEDURE
PROJECT: | Ref No. FOUN/04 | |||
PAGE 1 OF 2 | ||||
SECTION: FOUNDATIONS | DATE OF ISSUE Dec 2012 | |||
SUBJECT: BORED PILING | BY: QA/QC ENGINEER | |||
APPROVED BY: QEHS MANAGER | ||||
ACTION | VERIFY | |||
1. SCOPE The scope of this procedure covers the control of installation of Bored Cast-in-Situ Concrete piles executed by a sub-contractor. 2. PROCEDURE .1 Method Statement: A method statement shall be submitted by the piling Sub-contractor for approval which shall include: i) Construction procedure. ii) Pile design with calculations. iii) Testing procedure. iv) Documentation to be maintained during the execution of work. v) Mix design for concrete. vi) Specification for reinforcement steel and bentonite clay. vii) Any other information required by the specification. .2 Construction Programme: The sub-contractor shall submit a programme for approval based on the Contract Programme. The subcontractor shall also indicate the mobilisation time of plant, equipment, materials and work force. .3 Piling Sequence: Approval of piling sequence will be given prior to commencement of piling by the Subcontractor. .4 Setting-Out: HEE will execute pre-piling setting out and offer for cross-checking by Subcontractor’s Surveyor and Consultant’s Representative. | Project Manager Sub-contractor Project Manager Subcon/ FCC Surveyor | Method Statement Approved Construction Programme Approval Field Book | ||
PROJECT: | Ref No. FOUN/04 | |||
PAGE 2 OF 2 | ||||
SECTION: FOUNDATIONS | DATE OF ISSUE Dec 2012 | |||
SUBJECT: | BY: QA/QC ENGINEER | |||
BORED PILING | APPROVED BY: QHSE MANAGER | |||
ACTION | VERIFY | |||
.5 Source Certificates: Reinforcement steel and Bentonite test certificates if required shall be obtained from the Subcontractor and, submitted for approval by the Consultant. .6 Concrete Cube Testing: Cube results will be assessed and retained. The cube test reports shall be clearly identified with the location of pour by reference to the checksheet. .7 Testing of Piles: The Subcontractor shall carry out a load test and integrity test as specified in the Contract. .8 Inspection of Work/Checksheet: The work shall be inspected using the attached checksheet as Appendix FOUN/04/A which shall be completed as verification and record of compliance. .9 Non-Conformity: Non-conforming workmanship shall be notified to the Subcontractor as Appendix 7/3/6/A and corrective action taken in accordance with good working practice and Consultants approval. | Project Engineer Project Engineer/ Labtech. Subcon. QA/QC QA/QC | Source certificate Test result, FOUN/04/A Pile testing record Checksheet Non- Conformity Report | ||
| PROJECT: SITE NO.: | ||||
CHECK SHEET FOR BORED PILING | Sheet No. | |||
  SUBCONTRACTOR: FATAYERJI SECTION OF WORK ____________________________LOCATION _________________ | ||||
STAGE | ITEM | Checked by | DATE | |
| PREPARATION | 1. Subcontractor’s method statement approved. | PE | ||
| 2. Materials approved by the consultant. | PE | |||
| 3. Cross-check location of Pile. | SU | |||
| APPROVAL TO PROCEED | QA/QC | |||
| INSTALLATION | 4. Check borehole to be filled with Bentonite slurry at all times. | GF | ||
| 5. Check cleaning of bottom of borehole. | GF | |||
| 6. Check reinforcement cage. | SE | |||
| 7. Check minimum cover while lowering cage into the borehole. | GF | |||
| 8. Check slump of concrete. | Lab | |||
| 9. Check cut-off level + location. | SU | |||
| APPROVAL TO PROCEED WITH PILE CAP. | CM | |||
