Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Form No.: P07-F06 / Rev. 0 / Nov. 2012 Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
METHOD STATEMENT FOR CONCRETING. METHOD STATEMENT No: 242-AMTC-MS-S-003
REV : 0
ORIGINATOR : AMTC
DISCIPLINE: STRL
Title :
Method Statement for Concreting.
REVIEWER / APPROVER REV
0
DATE
12-Jul-14
Status Code: D : Draft P
: Preliminary
STATUS
FA
REVISION DETAILS
FOR REVIEW & APPROVAL
FI : For Information FA : FA : For Approval
Sub Con
Main Con
EXTERNAL
NW
FC : For Construction * External Authorization Authorization (Client), (Client), where required
Distribution :
Method Statement for Earthworks, Excavation and Backfilling. AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 / Nov. 2012
Page 1 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
Table of Contents
1.
Scope /Objectives
2.
Reference
3.
Access/Egress
4.
Logistics
5.
Health and Safety Hazards
6.
Definitions
7.
Responsibilities / Supervision
8.
Procedures /Method to be Employed
9.
Training
10.
Working hours
11.
House keeping
12.
Manpower Requirement & Supervision
13.
Material Requirement
14.
Plant & Equipment Requirement
15.
Q.C Approvals and other Documentation
16.
Supporting documentation
17.
Distribution
18.
Other information
19.
Site Safety Engineer’s Approval
20.
Attachments (Compulsary)
Risk Assessment Inspection and Test Plan Quality Control Check Lists
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 2 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
1.
SCOPE & OBJECTIVES This Method Statement outlines the construction methodology of concrete works. (Blinding, Mass and Structural Concrete.)
2.
REFERENCES Contract Drawing and specification 2.1 QCS 2010 Section 12 Earthworks. 2.2 QCS Section 05 “Concrete Supply – Construction – Testing” 2.3 Project Health, Safety and Environmental Guidelines 2.4 Project “inspection and Test Plan – Civil Works” 2.5 British Standard : BS 8110 – Structural use of concrete 2.6 British Standard : BS 1881 – Testing of concrete 2.7 American Standard : ACI 305 r – Hot Weather Concreting 2.8 “Method Statement for Earthwork, Excavation, and Backfilling.” 2.9 Project Specification Section 5.
3.
ACCESS/ EGRESS Access will be through designated entrance and exit pathways.
4.
LOGISTICS Contractor will deploy a dedicated team for the earthwork, excavation and backfilling.
5.
HEALTH & SAFETY HAZARDS Contractor will comply with all safety measures as applicable to project safety requirements. 3.1 Personal Protective Equipment (PPE) will be worn at all times as required. 3.2 Proper & safe access to the work area shall be maintained throughout the working period. 3.3 Concrete pump shall be positioned in an appropriate area, which is hard and stable during the pumping operation. 3.4 Any surplus concrete that is left over shall be removed from site. 3.5 Compressor hoses used for concrete vibrators shall be in good condition and free of damage/defects. 3.6 Scaffolds erected for the purpose of placing concrete shall be to the project safety standard. 3.7 Scaffold shall be inspected prior to utilization. Scaffold shall be re-inspected daily, if any. 3.8 Standard scaffold planks shall be used for platforms. 3.8 Scaffold shall not be over loaded. 3.9 Sufficient Lighting will be provided for night concrete work.
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 3 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
6.
DEFINITIONS AEB – Arab Engineering Bureau (Consultant/Engineer) AMTC – Abdullah Al Muftah Trading and Contracting Co., w.l.l (Main Contractor) MS – Method Statement QCP – Quality Control Procedures ITP – Inspection and Test Plan ITA – Independent Testing Agency
7.
RESPONSIBILITIES / SUPERVISION The works will be undertaken by AMTC with a competent workforce to do the works conforming to the project specifications through the following responsibilities. 7.1 Project Engineer shall be responsible for the execution of this procedure and to ensure that works are undertaken in a safe manner to the requisite quality and to the time agreed timescale. He shall advise and coordinate with other contractors pertaining to access and interface requirements related to the excavation works to be undertaken. 7.2 Site Engineer shall be responsible for the site implementation of this procedure including control and the safety of the workers. 7.3 QA/QC Inspector shall be responsible for the supervision of tests and inspection, control approvals for testing and inspection plan and to arrange documentation required. 7.4 The Surveyor in coordination with site engineer has the responsibility to perform all survey works according to the IFC drawings. 7.5 Safety Officer shall be responsible for the strict implementation of safety procedure during work commencements.
8.
PROCEDURE / METHOD TO BE EMPLOYED: Excavations shall be inspected daily by the Site Engineer / Supervisor / Safety Officer. Excavation shall be re-inspected after rainstorms, earthquakes or any other hazard increasing occurrences. A convenient and safe means of access such as stairway, ladder or ramp shall be provided for employees to enter and leave the excavated area. Safe crossings shall be provided over trench excavations. Before opening any excavation, all underground services shall be identified and the Supervisor shall explain to the employees all the necessary precautions that need to be taken in the work preparation. In no case the excavated material shall be placed closer than 600mm from the edge of the excavation. Excavations shall be provided with warning barricades. Deep excavation to be barricaded with flashing lights during night. The sides of excavations shall be sloped in order to avoid sliding of sand / earth. Personnel Protection Equipment’s shall be used at all the times. Setting out of surveyed stations to be carried out from the approved control stations provided byBEST Bureau of Engineering Studies and temporary benchmarks. The extent of excavation shall be marked with the provision for working space and slopes for deep excavation. Level +3.0 QND as the starting level of the excavation.
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 4 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
Existing underground services are to be exposed and identified by hand excavation. These will be as-built and incorporated to the new services which will be formed as the combined services drawing. Proposed works to be done shall be submitted for Client approval. Sequences of Excavation will be executed as follows : •The whole area will be scraped by bulldozers up to rock formation level which is the bottom of raft foundations/footings. •The isolated foundations will be excavated down to the top level of hard rock. •The foundations Pool Annex will be excavated -1.17M QND Level. The foundations for Main Villa will be excavated 0.82M QND Level. The Swimming Pool will be excavate d -0.185M QND. Excavation level will be the bottom of foundation plus blinding thickness. Backhoe/Excavator equipment will be used for excavation of desert fill materials Limestone / rock strata will be by excavator / rock breaker. Excavated blinding levels will be tested for the required bearing capacity by relevant tests. Hand Tools shall be used to do manual excavation as required. Care to be taken to protect existing structures / underground services if any, while excavating adjacent to them. Heavy equipment will not be allowed to access whenever the required excavation/formation level is reached to avoid disturbance of the strata. Independent Testing Laboratory shall be submitted to Client for approval.
Backfilling Backfilling to be carried out around the structures in 250 mm thick layers with approved fill material. Compaction will be done by jumping rammers / rollers / plate compactors as required to achieve the required minimum of 95% MDD. Moisture content of the fill will be maintained within +/-3% of Optimum Moisture Content to achieve compaction requirement as per Clause 3.5 of QCS Section 12 Part 3. The density of any layer requiring compaction shall be determined in accordance with the specifications at a minimum rate of one test per 100 meter run or 500 meter square, whichever is less. The oven drying of soil and aggregates samples for testing shall not be carried out at a temperature in excess of 60° C and 100° C respectively. The minimum frequency of density testing shall be 1 test per 500 m2 of prepared area or tests shall be carried out as directed by the Engineer.
Disposal of Materials Excavation materials will be stockpiled on a designated place as agreed with the Engineer. Suitable material arising from the excavation shall be screened and used for backfilling. Unsuitable excavated material shall be disposed to an approved Government tip off location.
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 5 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
9.
TRAINING Relevant trainings and orientations have been provided to person who will perform their specified task.
10. WORKING HOURS The working hours will be from 6:00AM to 6:00PM as agreed, with break time in between. 11. HOUSE KEEPING Working Areas will be kept clean by disposing the waste materials at the designated areas. At the end of days’ work, installation supervisor will ensure that the debris are disposed off.
12. MAN POWER REQUIREMENT Foreman Laborers Operators
13. PLANT & EQUIPMENT REQUIREMENT Excavator/Backhoe Dump truck
14. QC APPROVAL AND OTHER DOCUMENTRY REQUIREMENTS: Follow approved Method Statement, ITP, QCP, HSE Plan, Material Approval & Checklist.
15. SUPPORTING DOCUMENTATION: This MS to be read in conjunction with the below referenced documents
Contract Specification & approved drawings. Project Quality Plan Project HSE Plan
16. DISTRIBUTION Copies of this MS will be circulated to the following for Information & action Sr. Construction Manager Site Engineer QA/QC Engineer
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 6 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
HSE Engineer
17. OTHER INFORMATION Ensure that all the activities have been carried out to suit the site conditions and involved With Site –in – charge
18. MAIN CONTRACTORS SAFETY ENGINEERS APPROVAL
APPROVAL STATUS
SIGNATURE
Approved Approved subject to compliance with the following notes Not Approved – with reason
19. ATTACHMENTS (Compulsory)
Risk Assessment Inspection & Test Plan Quality Control Check Lists
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 7 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 8 of 9
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL QATAR Project No. : 242 Location: PEARL QATAR Client
Consultant
Contractor
Subcontractor
MR. FAHAD ALFARDAN
Method Statement for Earthworks, Excavation and Backfilling. Nov. 2012 AEB-CSD Quality Forms
Form No. P07-F06 / Rev. 0 /
Page 9 of 9