Thuyết minh biện pháp thi công cọc ván thép bằng cọc cừ L4 (Tiếng anh)

Thuyết minh biện pháp thi công cọc ván thép trụ cầu đường sắt đô thị thành phố Hà Nội (Tiếng Anh)

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DAELIM INDUSTRIAL CO., LTD

METHOD STATEMENT FOR SHORED EXCAVATION

Location: Tu Liem, Cau Giay, Dong Da and Ba Dinh – Ha Noi City

PROJECT IMPLEMENTATION CONSULTANT: SYSTRA S.AJanuary, 2015

Project Reference: DLM-IMP-PPG-WVO-J07-00001-E-1A

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PROJECT: HANOI PILOT LIGHT METRO LINE Section Nhon - Hanoi Railway Station

PACKAGE: LINE-ELEVATED SECTIONPACKAGE NUMBER: HPLMLP/CP-01

METHOD STATEMENT FOR SHORED EXCAVATION

Location: Tu Liem, Cau Giay, Dong Da and Ba Dinh – Ha Noi City

Hanoi, 03 January, 2015

HANOI METROPOLITANRAILWAY MANAGEMENT

BOARD (MRB)

CONSULTANT (SYSTRA S.A.)

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Contractor Approval / Revision Record Sheet

Contractor specific comments:

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4.1 PERSONNEL ORGANIZATION FOR MAIN CONTRACTOR 22

4.2 PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR SPECIAL BRIDGE 23

4.3 PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR TYPICAL BRIDGE 24

5 MATERIALS, EQUIPMENT AND MANPOWER 25

5.1 MATERIALS 25

5.2 EQUIPMENT 25

5.3 MANPOWER 26

6 CONSTRUCTION METHOD 27

6.1 CONSTRUCTION FLOW CHART 27

6.2 DETAIL OF CONSTRUCTION METHOD 28

6.2.1 MOBILIZATION AND PREPARATION WORKS 28

6.2.2 CONSTRUCTION OF COFFERDAM (STEEL SHEET PILES) 28

6.2.3 CONSTRUCTION OF COFFERDAM (STEEL SHEET PILES) 29

6.2.3.1 Excavation Stage 1: About install struts and wales 29

6.2.3.2 Excavation Stage 2: Excavation by machine until design level and hauling out of excavated material 306.2.3.3 Excavation Stage 3: Trimming and leveling work 30

6.2.3.4 Construction for temporary drainage system (Dewatering) 30

6.2.3.5 Cleaning up site 30

7 QUALITY CONTROL 31

8 HEALTH, SAFETY AND ENVIRONMENT CONTROL 31

8.1 HEALTH AND SAFETY CONTROL 31

8.2 ENVIRONMENT CONTROL 32

8.3 HAZARD ANALYSIS 32

9 TRAFFIC CONTROL 33

10 APPENDIX 33

10.1 APPENDIX 1: METHOD DRAWING 34

10.1.1 SHORED EXCAVATION METHOD DRAWING FOR TYPICAL BRIDGE 34

10.1.2 SHORED EXCAVATION METHOD DRAWING FOR SPECIAL BRIDGE 34

10.2 APPENDIX 2: INSPECTION AND TESTING PLAN 35

10.3 APPENDIX 3: TYPICAL SCHEDULE FOR SHORED EXCAVATION OF 01 PILE CAP 36

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AbbreviationsMRBHanoi Metropolitan Railway Management BoardPICProject Implementation Consultant (SYSTRA S.A.)DLM Daelim Industrial Co., Ltd

Project References

1 DLM-IMP-PPG-WVO-J07-00001-E-1A Method statement for shored excavation

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1 INTRODUCTION OF PROJECT1.1INTRODUCTION

Hanoi Pilot Light Metro Line, section Nhon - Hanoi Railway Station is a major project for Hanoi City.According to the Hanoi Transportation Master Plan till 2020, total length of HPLML (Line 3) shall reach21,5km from Nhon to Hoang Mai.The first phase of this line, and part of this Contract is from Nhon toHanoi Railway Station, with about 8.5 km elevated section and 4.0 km underground section This lineincludes 12 stations (with 8 elevated and 4 underground stations) The Depot is located at Nhon with areaof 150,550m2.

The CP01 Contract’s work scope is Viaduct Line at Elevated Section, including the construction ofviaduct structures which link along the National Road No32, Ho Tung Mau, Xuan Thuy, Cau Giay andinterfaces with underground section at the beginning of Kim Ma Street The contract shall be completedand within 30 months from the date of the Commencement Date.

Both metro and structure alignment follow the current and/or planned median road Viaduct structures aredivided into standard viaducts which cover most of the elevated section and special viaducts where long orspecial spans are required to pass over major constraints (2nd Ring Road, 3rd Ring Road, Nhue River).Other non-typical structure consists in Cross Over (metro line requires switches), ramps to depot andunderground sections and Y-bridge (branches off to depot) The overview of the project is shown in photobelow:

Overview of project

2 SCOPE OF WORK2.1GENERAL

Structure excavation work of Project will be carried out within the narrow area and with the great depth ofexcavated hole Therefore, Shored excavation method will be applied to ensure stability of excavationhole for structure construction.

Shored Excavation shall be undertaken in accordance with clause “3.4 - Shored excavation, Part II,Chapter II-2” of Technical Requirement This method is generally applied to Shored excavation to thedesign bottom elevation for all pile caps using shoring system.

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This method also includes disposal of unsuitable excavated material, dewatering works and related worksto be free from the accumulation of ground water and artificial runoff water inside excavated area ShoredExcavation shall be done in accordance with the perimeters and slope as indicated on the approvedworking drawing

The Contractor shall set up and submit method of shored excavation The Contractor can adjust methodfor shored excavation in accordance with the actual condition on the site or at the direction of ConsultantEngineer All adjustments will be reviewed and approved by the Consultant Engineer, Employer.

After obtaining consent from the Consultant Engineer, Employer, the Contractor will carry out shoredexcavation.

Shored excavation part including:

 Shored excavation for pilecap type I (Standard pile cap). Shored excavation for pilecap type II (Cantilever pile cap). Shored excavation for pilecap type III (Special pile cap).

The Contractor will use method of excavation works of foundation pit by excavator and manpower.

Reference document:

- Contract Package 04/2014/HD-TCXD, PART II - Chapter II-2, Section 3 Earthwork.

- Contract Package 04/2014/HD-TCXD, PART II - Chapter II-2, Sub-Section 3.4.Shored excavation

-Contract Package 04/2014/HD-TCXD, PART II - Chapter II-2, Sub-Section 3.3.Common excavation.- Contract Package 04/2014/HD-TCXD, PART II - Chapter II-2, Sub-Section 3.5 Preparation and

inspection of foundations.

- Contract Package 04/2014/HD-TCXD, PART II - Chapter II-2, Sub-Section 3.8 Grade preparation.- Contract Package 04/2014/HD-TCXD, PART II - Chapter II-2, Sub-Section 3.9 Water Control.

- Construction Management Plan, document No : DLM – IMP – PPG – ZCO – J00 – 00001 – E

- Quality Plan, document No : DLM – IMP – PPG – ZPQ – J00 – 00001 – E

- Delivery Management Plan, document No: DLM – IMP – PPG – ZPO – J00 – 00001 – E

- Traffic Management Plan, document No: DLM – IMP – PPG – ZPO – J00 – 00004 – E

- H&S Management Plan, document No: DLM – IMP – PPG – ZSO – J00 – 00003 – E

- Environment Management Plan, document No: DLM – IMP – PPG – ZSO – J00 – 00002 – E

- Security Management Plan, document No: DLM – IMP – PPG – ZSO – J00 – 00001 – E

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3.CONSTRUCTION PROCEDURE3.1QUANTITY OF WORK

The estimated quantity is as followings table Below quantity is only reference Final quantity shall becalculated in accordance with approved working drawing Topographic survey of original ground whichhad been approved shall be applied to calculate the quantity for structure excavation.

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No.Type ofbridgePier

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Excavation Volume(m3)Length

Width (m)

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Width (m)

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Width (m)

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3.2REFERENCE TO BORE HOLE

Based on alignment geological borehole, we have reference table of geological boreholes in accordance

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with pier position Reference table is established for piers of Typical Bridge and Special Bridge.

With dimension, depth and geology of borehole at position of piers, Contractor calculated and proposedall piers in alignment have to use sheet piles cofferdam during excavation process.

Also, at position of pier caps with dimension (10.9x7.4x3.5m và 5.6x4.8x3.0m), Contractor use bracingsystem inside steel piles cofferdam.

Dimension, sheet pile cofferdam lay out, scope of application spreadsheet for all kinds of pier cap onTypical Bridge is shown in the attached drawing in section 10.1.1

Dimension, sheet pile cofferdam lay out, scope of application spreadsheet for all kinds of pier cap onSpecial Bridge is shown in drawing DLM-IMP-GPV-WVO-JOO-10003-B and DLM-IMP-GNS-WVO-JOO-10018-B (attached in section 10.1.2).

Spreadsheet for pier cap in the most unfavourable when constructing pier cap with cofferdam withoutwales & struts inside, will be submitted separately

Spreadsheet for pier cap in the most unfavourable when constructing pier cap with cofferdam and wales &struts inside, will be submitted separately

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clay,very Stiff /Sét dẻo thấpdẻo cứng

Organic silt, firm/Bụi lẫn hữu cơ,

dẻo mềmLean clay,very Stiff /Sét dẻo thấpdẻo cứngLean

clay,firm/Sét dẻo thấpdẻo mềm

Trụ tham chiếu/Reference to

Typical bridge/Cầu điển

Lean clay,very Stiff /Sét dẻo thấpdẻo cứngLean

Lean clay,very Stiff /Sét dẻo thấpdẻo cứngOrganic

silt: soft/Sét dẻo thấpdẻo chảy,

Lean clay,firm/Sét

dẻo thấpdẻo mềm

dẻo mềmLayer 3/Lớp 3

Lean clay with some organic,firm

/Sét dẻo thấp, đôi chỗ lẫn ít hữu cơdẻo mềm

Lean clay,very Stiff /Sét dẻo thấpdẻo cứng

clay,very Stiff /Sét dẻo

thấpdẻo cứng

Lean clay,very Stiff /Sét dẻo

thấpdẻo cứngLayer 2/Lớp 2

thấpdẻo cứng

Made ground/Đất lấp

Made ground/Đất lấpMade

ground/Đất lấpMade

ground/Đất lấp

Made ground/Đất lấpBorehole/Lỗ khoan

ground/Đất lấp

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ground/Đất lấp

Layer 2/Lớp 2

ground/Đất lấp

Lean Clay, Stiff-very

stiff/Sét dẻo thấpnửa cứng

Layer 3/Lớp 3

thấpdẻo cứng

Organic silt: soft-firm/Sét dẻo thấpdẻo chảy,

mềmLean

clay,firm/Sét dẻo thấpdẻo mềm

Trụ tham chiếu/Reference to

Typical bridge/Cầu điển

Organic silt, firm/Bụi

lẫn hữu cơ,dẻo mềm

Organic silt, firm/Bụi lẫn hữu cơ,dẻo mềm

Organic silt, Stiff/cát lẫn

bụi, xốp- rất xốp

Organic silt, firm/Bụi lẫn hữu cơ,dẻo mềmOrganic

silt: firm/Sét dẻo thấpdẻo chảy,

Cobble,Gravel with sand, very dense/Cuội sỏi, lẫn cát, rất chặt

Organic silt ,firm/Sét dẻo thấpdẻo mềm

Silt sand,medium dense/Cát lẫn bụi,chặt vừa

Organic silt firm/Sét dẻo thấpdẻo mềmOrganic silt

,firm/Sét dẻo thấpdẻo mềm

Silt sand,medium dense/Cát lẫn bụi,chặt vừa

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chiếu/Reference to

Special bridge/Cầu

đặc biệt

dẻo mềmLean

Silt sand, medium dense/Cát lẫn bụi,chặt

vừaSilt sand,

medium dense/Cát

lẫn bụi,chặt

vừaOrganic

silt, firm/Bụi lẫn hữu cơ, dẻo mềm

Organic silt, firm/Bụi lẫn hữu cơ, dẻo mềmLean

Lean clay, firm

/Sét dẻo thấpdẻo mềm

Organic silt, firm/Bụi

lẫn hữu cơ, dẻo mềm

Organic silt: soft-firm/Sét dẻo chảy,dẻo mềm

Organic silt, firm/Bụi lẫn hữu cơ, dẻo mềmLean clay,very Stiff /Sét dẻo thấpdẻo cứng

Layer 3/Lớp 3

Organic silt: soft/Sét dẻo thấpdẻo chảy

Lean clay,very Stiff /Sét dẻo thấp

Lean clay, firm

/Sét dẻo thấpdẻo mềmLean

Lean clay,very Stiff /Sét dẻo thấpdẻo cứngLayer 2/Lớp 2

Lean clay,very Stiff /Sét dẻo thấpdẻo cứngBorehole/Lỗ khoan

Layer 1/Lớp 1Made ground/Đất lấp

Lean Clay, Stiff-very stiff/Sét dẻo thấpnửa cứng

Organic silt firm/Sét dẻo thấpdẻo mềmMade

ground/Đất lấp

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4 PERSONNEL ORGANIZATION

4.1PERSONNEL ORGANIZATION FOR MAIN CONTRACTOR

HEAD OFFICE↑SITE OFFICE↓

SITE ENGINEER

QUANTITY SURVEYORCONTRACT M ANAGER(CHOI,JAE-HOON)

PROGRAM M E TEAMCONTRACT TEAM

PLANNING DEPARTM ENTPLANNING M ANAGERDEPUTY PROJECT M ANAGER

COST CONTROL M ANAGER(LEE,CHUNG-HEE)

ADM M ANAGER(KWON,YONG-SHIK)

(DOAN HUU KHOAT)

CLERK(NG T THANH)

CHIEF CIVIL ENGINEER(SƠN TRẦN NGỌC)

SPECIAL BRIDGECHIEF CIVIL

ENGINEER(T T HUY)ACCOUNTING TEAM

LEAD OF GEOTECHNICAL

(ĐẠI TRỊNH XUÂN)(TÚ NGUYỄN M INH)

(NG X HAI)(NG V PHONG)

(HOÀ PHẠM THÁI)(KHIÊM TRẦN ĐĂNG)

CHIEF SURVEYOR(T TRUNG THANH)DESIGN TEAM

(Control Environment)

SAFETY SUPPORTERSH/S ENGINEER

(TOÀN NGUYỄN KHÁNH)

H/S ENGINEER(NGUYỄN VĂN TỚI)

ENVIRONM ENT ENGINEER

SECURITY OFFICESECURITY GUARDS

ENVIRONM ENT M ONITORING TEAMSAFETY OFFICER &

SAFETY SUPPORTERS

(NG K THUAN)DESIGN M ANAGER

PROJECT DIRECTOR

(115 Emergency)

SECURITY LEADER

LABOR CONTROLLERWORK PROGRAM M E

M ANAGER (NG T VU)(Control Security , health and

ADM INISTRATION M ANAGER(HEO,SEON-HAENG)

SUPERVISORCHIEF ACCOUNTANT

(T H ANH)

M ATERIAL PURCHASER

CHIEF OF LABORATORY

QC CHIEF ENGINEER(T M KHANH)

LABORATORY STAFF(TÚ TRẦN ANH)

CONSTRUCTION M ANAGER(OH,SEUNG-JONG)ENV/SUPPORTERS

QA / QC DEPARTM ENTQUALITY ASSURANCE M ANAGER

(G B NGOC)

QUALITY CONTROL TEAMHEALTH & SAFETY M ANAGER

(V V THUY)

(NG NG TRÌNH)

CHIEF STR ENGINEER(D TUNG)(HOANG TIEN TRUNG)

ADM INISTRATION DEPARTM ENT

(PHƯƠNG NGÔ GIA)

(T T TINH)

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4.2PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR SPECIAL BRIDGE

Construction Manager/Chỉ Huy TrưởngMr Lê Thảo TâmPhone: 0987.520.820

Designer/Thiết kếMr Lê Minh TràPhone: 0912-337-176

Mr Bùi Trần HàPhone: 0983-718-345

QA, QC/ Quản lý chất lượngMr Ngô Thế QuỳnhPhone: 0916-042-060

Construction Team/Bộ phận thi côngMr Trần Hữu ThắngPhone: 0983-899-315

Mechanical Team/Bộ phận máy thi công

Mr Cao Tiến SơnPhone: 0985-320-691

Surveyor Team/Đội Trắc đạcMr Khuất Hữu Thuận

Design Team/Tổ Thiết kế

QA, QC Team/Tổ quản lý chất lượng

Mr Cấn Mạnh HùngMr Lê Văn LongPhone: 0947-211-268

ExcavationTeam/Tổ thi công đào

Drainage Team/Tổ thi công thoát

nước tạm

Clinic Team/Tổ Y tế

Safety Team/Tổ An toànMr Phạm Ngọc TiếnPhone: 01686-539-171

Traffic AssuranceTeam/

Tổ Đảm bảo giao thôngPlanning,QS Team/

Bộ phận Kế hoạch, khối lượng Mr Lê Thăng QuânPhone: 01683-636-867

Sheet pile Team/Tổ cọc ván thép

GIÁM ĐỐC ĐIỀU HÀNH DỰ ÁNMr.Lê Lệnh Bắc

Phone: 0913253582

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4.3PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR TYPICAL BRIDGE

GIÁM ĐỐC ĐIỀU HÀNH DỰ ÁNMr.Nguyễn Tuấn Anh

Phone: 0989059379Email: tuananhsd73@gmail.com

PHÓ GIÁM ĐỐC BAN ĐIỀU HÀNHPhụ trách quản lý thi công, ATLĐ, đảm bảo giao

thôngMr: Trần Ngọc QuýPhone: 0979267723Email: ngocquyc14@gmail.comPHÓ GIÁM ĐỐC BAN ĐIỀU HÀNH

Phụ trách kế hoạch, thanh toán, kỹ thuậtMr: Đào Đức Huynh

Phone: 0913060752

BỘ PHẬN KẾ HOẠCH, KHỐI LƯỢNGMr Bùi Quang Vinh

Phone: 0949393492

BỘ PHẬN MÁY THI CÔNG

Mr Đỗ Đường TúPhone: 0974112422THIẾT KẾ

Mr Nguyễn Thắng AnPhone:0989643926

QUẢN LÝ CHẤT LƯỢNGMr Phạm Xuân Nghĩa

Phone: 0912774678 BỘ PHẬN THI CÔNGMr Nguyễn Trung Kiên

Phone: 0979898568

ĐỘI TRẮC ĐẠC Mr Trương Quốc Ninh

Phone: 0904545744

NHÓM AN TOÀN SỨC KHỎE , MÔI TRƯỜNG

Mr Trương Công ThịnhPhone: 0979032579

Mr Lê Văn TuấnPhone:0972405191

Mr Nguyễn Sỹ ThườngPhone:016689912487

Mr Nguyễn An QuangPhone:01689615196Mr Nguyễn Văn Đô

Mr Trần Văn CườngPhone:0972405191Mr Đàm Quang Chiến

Mr Nguyễn Văn HùngPhone:0936672916

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