BPTC cho nhà điều khiển hệ thông Than MS of concrete work for coal hanging control building. Tài liệu tham khảo biện pháp thi công nhà công nghiệp, nhà điều hành của hệ thống Than nhà máy nhiệt điện ngôn ngữ tiếng Anh đầy đủ nhất
Trang 1DOCUMENT SUBMISSION STATUS: FOR CONSTRUCTION
PROJECT TITLE
SONG HAU 1 THERMAL POWER PLANT (2x600MW)
EPC CONTRACTOR EPC CONTRACTOR’SCONSULTANT
VIETNAM OIL AND GAS GROUP
Trang 21 PURPOSE 4
2 SCOPE OF WORKS 5
3 REFERENCE DOCUMENT 5
3.1 PROJECT DOCUMENT 5
3.2 DESIGN DRAWING 5
3.3 STANDARD AND CODE 6
4 DEFINITION 8
5 PERSONNEL AND EQUIPMENT MOBILIZATION PLAN 9
5.1 PERSONNEL 9
5.1.1 Organization Chart 9
5.1.2 Manpower 9
5.2 EQUIPMENT 10
6 CONSTRUCTION METHOD 10
6.1 CONSTRUCTION SEQUENCE 11
6.2 PREPARATION 12
6.3 SURVEY AND SETTING OUT 12
6.3.1 Benchmark 12
6.3.2 Survey setting out 12
6.3.3 Survey control 12
6.4 FABRICATION AND INSTALLATION OF REBAR 13
6.4.1 Material: 13
6.4.2 Cutting and blending: 13
6.4.3 Installation: 13
6.4.4 Inspection: 14
6.5 FORMWORK 14
6.5.1 Materials: 14
6.5.2 Calculation of formwork 14
6.5.3 Typical formwork: 14
6.5.4 Fabrication: 15
6.5.5 Installation: 15
6.5.6 Requirement of formwork 15
6.5.7 Inspection: 15
6.6 POURING CONCRETE 15
Trang 36.6.1 Preparing before pouring concrete: 15
6.6.2 Testing concrete: 16
6.6.3 Pouring concrete: 16
6.7 PROTECTION AND CURING OF CONCRETE 16
6.7.1 Curing: 16
6.7.2 Protection: 17
6.8 REMOVAL FORMWORK 17
6.8.1 Formwork Removal Time 17
6.8.2 Sequence of removal formwork: 17
6.8.3 Removal formwork notes: 18
6.9 FINISHED SURFACE 18
6.10 CONSTRUCTION JOINT AND EMBEDDED 18
6.10.1 Construction Joint 18
6.10.2 Chamfer 19
6.10.3 Embedded 19
7 CONSTRUCTION SCHEDULE 20
8 QA/QC 20
9 HSSE 21
9.1 LEGAL PROCEDURES OF SOCIALIST REPUBLIC OF VIETNAM FOR SAFETY AND HEALTH ARE BEING APPLIED 21
9.2 SAFETY CONTROL ORGANIZATION 22
9.2.1 Safety Control Organization 22
9.2.2 Responsibilities 22
9.3 HSSE MANAGEMENT PLAN 24
9.4 THE PREVENTIVE MEASURES TO ENSURE SAFETY DURING CONSTRUCTION 25
9.4.1 Before entering the work area: 25
9.4.2 The safety requirements at work: 25
9.5 PERMIT TO WORK 25
10 APPENDIXES 25
10.1 APPENDIX 1 (Calculation of Formwork) 25
10.2 APPENDIX 2 (Equipment and Manpower Manpower Mobilization Plan) 25
10.3 APPENDIX 3 (Risk Assessment) 25
10.4 APPENDIX 4 (Job Safety and Environment Analysis) 25
Trang 410.5 APPENDIX 5 (Shop Drawing) 25
APPENDIX 1 26
(Calculation of Formwork) 26
APPENDIX 2 42
(Equipment and Manpower Manpower Mobilization Plan) 42
APPENDIX 3 45
(Risk Assessment) 45
APPENDIX 4 52
(Job Safety and Environment Analysis) 52
APPENDIX 5 57
(Shop Drawing) 57
Trang 51 PURPOSE
The purpose of this Method Statement is to provide a general explanation of the workprocedure to be carried out concrete work for Coal Handling Control Building of projectSONG HAU 1 THERMAL POWER PLANT - TWO (2) X 600MW
2 SCOPE OF WORKS
This method statement also describes the general work methods and materials (includingmachinery &equipment, manpower), quality control, HSSE necessary for theconstruction Coal Handling Control Building and to ensure that the entire execution stage
of work is met with the Project’s specification and nation code
3 REFERENCE DOCUMENT
3.1. PROJECT DOCUMENT
- RFP documents: Appendix 2- section 6: Technical specification for cast inplace concrete
- Concrete work execution procedure No SH1-LLMP0001-QA-G01-PRO-0003
- Inspection and Testing Plan for Concrete work: No ITP-0007
SH1-LLMP0001-C-G01-3.2. DESIGN DRAWING
1
Coal handling control building –
Pilecap PC-1, PC-2, Tie Beam
Details
C-S02.2-DFN-1702 0 FC2
SH1-VNCC-P0100-Coal handling control building –
Framing Plan, Level EL+3.00,
Column Plan
C-S02.2-DCN-1701 0 FC3
SH1-VNCC-P0100-Coal handling control building –
Structural Plan-Level EL+6.000,
Structural Plan-Level EL+11.600
C-S02.2-DCN-1702 2DCN1 FC
SH1-VNCC-P0100-4
Coal handling control building –
Structural Plan-Level EL+8.700,
Structural Plan-Level EL+15.600,
Structural Roof Plan
C-S02.2-DCN-1703 1 FC
SH1-VNCC-P0100-5 Coal handling control building –Line Framing Elevation SH1-VNCC-P0100-C-S02.2-DCN-1704 2DCN1 FC
6 Coal handling control building –
Column Detail
C-S02.2-DCN-1705 1 FC
SH1-VNCC-P0100-7 Coal handling control building –Beam Detail SH1-VNCC-P0100-C-S02.2-DCN-1706 2DCN1 FC
8 Coal handling control building –Rebar Slab Plan EL+3.000, +8.700 SH1-VNCC-P0100-C-S02.2-DCN-1707 0 FC
Trang 69 Coal handling control building –
Rebar Slab Plan EL+6.000
C-S02.2-DCN-1708 1 FC1
SH1-VNCC-P0100-0 Coal handling control building –Rebar Slab Plan EL+11.000 SH1-VNCC-P0100-C-S02.2-DCN-1709 1 FC1
1
Coal handling control building –
Rebar Slab Plan EL+15.600,
+18.600
C-S02.2-DCN-1710 1 FC1
SH1-VNCC-P0100-2 Coal Handling Control Building –Slab Section SH1-VNCC-P0100-C-S02.2-DCN-1711 1 FC1
3
Coal Handling Control Building –
1st Staircase Detail
C-S02.2-DCN-1712 0 FC1
SH1-VNCC-P0100-4
Coal Handling Control Building –
2nd Staircase Detail
C-S02.2-DCN-1713 0 FC
SH1-VNCC-P0100-3.3. STANDARD AND CODE
2 ACI 304 Measuring, Mixing, Transporting and PlacingConcrete
Construction and Materials
9 ASTM C109 Standard Test Method for Compressive Strength ofHydraulic Cement Mortars
10 ASTM C191 Standard Test Method for Time of Setting ofHydraulic Cement by Vicat Needle
11 ASTM C115 Standard Test Method for Fineness of PortlandCement
12 ASTM C185 Standard Test Method for A Content of HydraulicCement Mortar
Hydraulic Cement
Trang 714 ASTM C114 Standard Test Method for Chemical Analysis ofHydraulic Cement
15 ASTM C142 Standard Test Method for Clay Lumps and FriableParticles in Aggregate
17 ASTM C40 Standard Test Method for Test of Organic Impuritiesin Fine Aggregates for Concrete
18 ASTM C128 Standard Test Method for Specific Gravity andAbsorption of Fine Aggregate
19 ASTM C136 Standard Test Method for Sieve Analysis of Fine
Coarse Aggregates
20 ASTM CS8 Standard Test Method for Soundness of Aggregatesby Use of Sodium Sulfate or Magnesium Sulfate
21 ASTM C1260 Standard Test Method for Potential Alkali Reactivityof Aggregates (Mortar-Bar Method)
22 ASTM C295 Standard Guide for Petrographic Examination ofAggregate for Concrete
23 ASTM C289 Standard Test Method for Potential Alkali-SilicaReactivity of Aggregates (Chemical Method)
24 ASTM C1651 Standard Test Method for Measurement of Roll
Wave Optical Distortion in Heat-Treated Flat Glass
25 ASTM C370 Standard Test Method for Moisture Expansion ofFired Whiteware Products
26 ASTM C494 Standard Specification for Chemical Admixtures forConcrete
27 ASTM C31 Method of Making and Curing ConcreteCompression and Flexural Test Specimens in the
Field
Mixed Hydraulic-cement Concrete
29 ASTM C143 Standard Test Method for Slump of Hydraulic-cement Concrete
30 ASTM C39 Method of Test for Compressive Strength ofCylindrical Concrete
Trang 81 TCVN 5574: 2012 Concrete and reinforced concrete - Design standard
2 TCVN 4506: 2012 Water for concrete and mortar - Technicalspecification
4 TCVN 9340:2012 Ready mixed concrete – Specification andacceptance
5 TCVN 4453 – 1995 Monolithic concrete and reinforce concrete
structures – Code for construction, check, andacceptance
6 TCVN 5724-1993 Concrete structure and Concrete reinforcementstructure – Minimum conditions for construction and
acceptance
7 TCVN 9262: 2012 Tolerances for building - Methods of measurementof buildings and building products
8 TCXDVN 305: 2004 Mass concrete - Code of practice for constructionand acceptance
9 TCVN 9343: 2012 Concrete and reinforce concrete structures – Guideto maintenance
10 TCVN 8828: 2011 Concrete – Requirement natural moist curing
11 TCVN 1651: 2008 Steel for the reinforcement of concrete
12 TCVN 4399: 2008 Steel and steel products – General technical deliveryrequirements
4 DEFINITION
- MS: Method Statement
- HSSE: Health, Safety, Security, and Environment
- QA/QC: Quality assurance / Quality control
- JSEA: Job Safety and Environment Analysis
- MSDS: Material Safety Data Sheet
- SH1PP: Song Hau 1 Thermal Power Plant
- LLM: Viet Nam Machinery Installation Corporation
Trang 9- PTW: Permit to Work
- START: Safety Task Analysis Risk Talk
- PM: Project Manager
- SV: Supervisor/foreman
- SWMS: Safety Work Method Statement
5 PERSONNEL AND EQUIPMENT MOBILIZATION PLAN
CIVIL TEAM LEADER
NGUYEN DUC MANH
SITE ENGINEER
Rev 1
Trang 10Site Engineer
5.1.2 Manpower
Manpower mobilization plan as the table:
Table – 1: Manpower mobilization
QS MANAGER
QS ENGINEER
REBAR WORK TEAM
TONG QUANG KHUONG
QA/QC MANAGER
QC ENGINEER
CONCRETING WORK TEAM
LE TRAN HIEU
CONSTRUCTION MANAGER
SITE ENGINEER
SERVICE WORKER TEAM
Trang 125.2. EQUIPMENT
Equipment mobilization plan as the table:
Table – 2: Construction equipment
Construction equipment
Trang 136 CONSTRUCTION METHOD
6.1. CONSTRUCTION SEQUENCE
`
Step1: CONSTRUCTION FOUNDATION
- Construction foundation and beam from El+0.800 to El+2.000
Step 2: CONSTRUCTION COLUMN FROM EL+2.000 TO EL+2.400
Step 3: BACKFILL FROM EL+0.800 TO EL+2.000
Step 4: CONSTRUCTION COLUMN FROM EL+3.000 TO EL+5.400
Step 5: CONSTRUCTION BEAM AND SLAB FROM EL+5.400 TO EL+6.000
Step 6: CONSTRUCTION COLUMN FROM EL+6.000 TO EL+10.25 ~EL+11.000
Step 7:CONSTRUCTION BEAM AND SLAB AT EL+10.250~EL+11.000 TO EL+11.600
Step 8: CONSTRUCTION COLUMN FROM EL+10.850 ~EL+11.600 TO EL+14.700
Step 9: CONSTRUCTION BEAM AND SLAB AT EL+15.600
Step 10: CONSTRUCTION COLUMN FROM EL+10.850 ~EL+11.820
Step 11: CONSTRUCTION BEAM AND SLAB AT EL+18.600
Step 3: CONSTRUCTION BEAM FROM EL+2.400 TO EL+2.800
Step 3: CONSTRUCTION BEAM AND SLAB FROM EL+2.800 TO EL+3.000
- Chipping beam and treatment construction joint
- Pour concrete beam and slab
Trang 146.2. PREPARATION
Site preparation will be carried out including main activities list below:
- Setting-out temporary benchmarks where required;
- Site clearance/ accessibility
- Temporary offices, accommodation, storage for material and equipment;
- Temporary access such as temporary road connection from main access;
- Temporary workshop for rebar fabrication, formwork, embedded, etc
- Temporary fence/ barricade will be installed around opening excavated area
- Water supply, electric power supply
6.3. SURVEY AND SETTING OUT
- All equipment must be calibrated and inspected before be used on the site
- Survey work will be carried out by Survey that was qualified
- The Contractor shall carry out a comprehensive level survey of the contract areabefore any work commences on the site
- In the setting out process, all elevation and coordinate transfer conducted shallstart on an established benchmark and finish on a different benchmark
- Before commencing their setting out, the surveyor should discuss with the siteengineer/foremen the methods to be used in the construction of the works Thesewill require pegs, profiles, batter rules and other information in locations whichwill not interfere with the movements of machines, men, and materials.
6.3.1 Benchmark
- Subcontractor will setout Secondary benchmark with coordinate and elevationtransfer from established benchmark of Contractor
- The secondary benchmark will be inspected by the Owner/ Contractor
- Secondary benchmark shall be made of concrete with a dimension of 200x200 and
be buried from 30 to 50cm underground, and top of the control point shall bemarked with Red Cross painting Or put on the concrete structure nearconstruction area (if any)
- The secondary benchmark will be protected by barrier
- The secondary benchmark will be checked at least one time a week
6.3.2 Survey setting out
- Surveyor would conduct site survey to setting out the lines, dimensions,alignment, thickness and the level of foundation and structural for worker carryout rebar and formwork installation
- Surveyor would set out the position and level of embedded
6.3.3 Survey control
Trang 15a) Benchmark:
- Secondary benchmark will be checked every week or be threatened
- Checking level and coordinate with the line, alignment, and dimension duringinstall rebar and formwork to ensure they were carried out as per FC drawing
- After the erection of the formwork and prior to concreting, a survey check shall becarried out on the formwork to ensure that the setting out has been done correctly
- Checking level and coordinate of the line, alignment, and dimension of formworkand embedded during placing concrete
6.4. FABRICATION AND INSTALLATION OF REBAR
- Each lot of rebar material must be taken a sample as per ITP and specification
- Each lot of rebar material must be inspected by the Owner/ Contractor before beused
6.4.2 Cutting and blending:
- The reinforcement bars will be cut and bent as per approval bar bending schedule.After, the rebar will be labeled by a group including the following contents:Foundation name, diameter, quantity, etc.…for easy identification duringinstallation work
- Carry out cutting and bending using appropriate machinery and tools, all hotcutting and hot bending shall not be allowed
- Fabrication dimensional tolerance: As specify according to ITP for Concretework: No SH1-LLMP0001-C-G01-ITP-0007
- Concrete spaces shall be made by suitable concrete strength grades according toFDNs concrete strength and thickness according to specified of FC drawings
- Splicing of bars will be complied with “Standard drawing No M01-DST-5707 Rev 0
- The rebar will be clean mud and rust before install
Trang 16- The rebar will be aligned horizontally and vertically from bottom to the top thefoundation schedule and structural detail.
- The top rebar will be supported on the bottom bar by mean of chairs forpreventing bar sagging if required
- The position, quantity, alignment of starter bar of column shall be done perapproval drawing
- Intermediate bars all around the sides of the foundation/pile caps have to beprovided
- Fasten embedded items securely in the proper position before placing concrete
- Fasten concrete spaces as FC drawings Concrete spaces shall be made by suitableconcrete strength grades according to FDNs concrete strength and thicknessaccording to specified of FC drawings
- Install water stops if require Ensure water stop will be installed straight andplumb, half wide of water stop will be in concrete after finish placing concrete
6.4.4 Inspection:
After rebar was installed, perform inspection according to ITP approved andincluding:
- Form, dimension;
- Quantity and position of bars in each structure;
- Stability and strongly of steel reinforcement;
- Quantity, quality of concrete spacer between steel reinforcement and formwork
6.5.1 Materials:
- Plywood panels seal with phenolic 1220x2440x20mm
- Steel box channel 100x50x1.8mm
- Steel box channel 50x50x1.8mm
- Steel plates 4mm thickness
- Other materials: Anchor rod D16, screw, support pipe, turnbuckle D14-D16,cable, plastic cone, anchor rod D12 (Grade SD390), bolt M14 (L140), SikaMonotop R or equivalent,
- All materials shall be of good quality, newly production and properly transportand store at the site according to manufacturer’ instruction