Biện pháp thi công hoàn trả nền đường - Tiếng anh

Biện pháp thi công hoàn trả nền đường lớp SUBBASE công trình tuyến đường sắt đo thị thí điểm thành phố Hà Nội tuyến Nhổn - Ga Hà Nội. công trình hoàn trả trong khu nội thành và có mật độ dân cư, lưu lượng người qua rất đông

DAELIM INDUSTRIAL CO., LTD

METHOD STATEMENT

PROJECT: HANOI PILOT LIGHT METRO LINE

Section Nhon - Hanoi Railway Station

PACKAGE: LINE-ELEVATED SECTION

PACKAGE NUMBER: HPLMLP/CP-01

METHOD STATEMENT FOR ROAD SUBBASE RE-INSTATEMENT

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

PROJECT IMPLEMENTATION CONSULTANT: SYSTRA S.A

July, 2015 Project Reference: DLM-IMP-PPG-WVO-J00-00017-E-1A

METHOD STATEMENT

PROJECT: HANOI PILOT LIGHT METRO LINE

Section Nhon - Hanoi Railway Station

PACKAGE: LINE-ELEVATED SECTION PACKAGE NUMBER: HPLMLP/CP-01 METHOD STATEMENT FOR ROAD SUBBASE RE-INSTATEMENT

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

Hanoi, date 23rd Jul 2015

HANOI METROPOLITAN

RAILWAY MANAGEMENT

BOARD (MRB)

Date of Approval

Hà Nội: ……./……/2015

CONTRACTOR

CONSULTANT (SYSTRA S.A.)

Contractor Approval / Revision Record Sheet

Revision

Validated by OH, SEUNG JONG 23/07/2015

Contractor specific comments:

Contens of table

1 GENERAL 6

2 REFERENCE 6

2.1 REFERENCE DOCUMENT 6

2.2 RREFENCE STANDARDS 6

3 SCOPE OF WORK 6

4 CONSTRUCTION SCHEDULE 6

5 SITE ORGANIZATION CHART 7

5.1 ORGANIZATION CHART FOR MAIN CONTRACTOR DAELIM 7

5.2 PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR TYPYCAL BRIDGE 8

5.3 PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR SPECIAL BRIDGE 9

6 EQUIPMENT AND MANPOWER 10

6.1 EQUIPMENT 10

6.2 MANPOWER 10

7 DESCRIPTION OF MATERIAL 10

8 CONSTRUCTION PROCEDUCE 11

8.1 WORKING FOLLOW 11

8.2 DESCRIPTION OF WORK SEQUENCE 12

9 QUALITY CONTROL 12

10 ENVIRONMENTAL, SAFETY AND HEALTH CONTROL 13

10.1 HEALTH AND SAFETY CONTROL 13

10.2 ENVIRONMENTAL CONTROL 13

11 TRAFFIC CONTROL PLAN 14

11.1 ALTERNATIVE FOR MACHINE AND VEHICLE GOING INTO AND OUT OF SITE 14

11.2 ALTERNATIVE FOR TRAFFIC CONTROL DURING THE CONSTRUCTION AND ROADBED OCCUPATION 14

11.3 RESPONSIVE METHOD TO TRAFFIC INCIDENTS 15

12 APPENDIX 15

12.1 APPENDIX 1: INSPECTION TEST PLAN (ITP) 16

12.2 APPENDIX 2: CONSTRUCTION METHOD DRAWING 17

Abbreviations

MRB Hanoi Metropolitan Railway Management Board

PIC Project Implementation Consultant (SYSTRA S.A.)

DLM Daelim Industrial Co., Ltd

Project References Ref N° Ref ID number Ref description

1 DLM-IMP-PPG-WVO-J00-00017-E-1A Method statement for road subbase

re-instatement

1 GENERAL

This MS describes Sub-base and base course work wich shall be carried out in accordance with

Technical Requirements Part II, Chapter II-2 – Section 11: Re-instatement The road work consists of

constructing Sub-base, base course at foundation excavation

2 REFERENCE

2.1 REFERENCE DOCUMENT

- Technical requirements: Item 11 Road re-instatement

- Construction Management Plan, document No.: DLM–IMP–PPG–ZCO–J00–0000–E/V

- Quality Management Plan, document No.: DLM–IMP–PPG–ZPQ–J00–00001–E/V

- Supply Management Plan, document No.: DLM–IMP–PPG–ZPO–J00–00001–E/V

- Transportation Management Plan, document No.: DLM–IMP–PPG–ZPO–J00–00004–E/V

- Safety and Health Management Plan, document No.: DLM–IMP–PPG–ZSO–J00–00003–E /V

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

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

2.2 RREFENCE STANDARDS

- Determining the liquid limit of soil AASHTO T89-02

- Determining the plastic limit and plasticity index of soil AASHTO T90-02

- Procedure of compacting soil, ballast in laboratory 22 TCN 333-06

- Experimental procedure determine CBR of soil, ballast in laboratory 22 TCN 332-06

- Material for concrete and test method TCVN 7572-12:2006

- Determining field density 22 TCN 346-06

- Sieve analysis of fine and coarse aggregates AASHTO T27

3 SCOPE OF WORK

This MS will be apply for all foundation of project with thickness of subbase is 80cm Follow

technical design, the thickness of pavement and embankment is 40cm subbase, 18cm base and

12cm asphalt but to pier cap constructrion, DLM propose that hole backfill by subbase with

thickness is 80cm from existing road surface with requirement follow technical requirement

of project After pier cap construction finished, contractor will be remove only 30cm in 18cm

base and 12cm asphalt, after that leveling and re-compaction to meet technical requirement of

subbase re-instatement and continute for base course, asphalt construction.

4 CONSTRUCTION SCHEDULE

Construction schedule for the road re-instatement will be submitted after approval of the overall

construction schedule and based on practical work

5 SITE ORGANIZATION CHART

5.1 ORGANIZATION CHART FOR MAIN CONTRACTOR DAELIM

HEAD OFFIC ↑

S ITE OFFICE ↓

COST CONTROL

M ANAGER

(LEE CHUNG HEE)

NGUYEN DUC HIEN

LE DUC HA

ĐINH CÔNG HÁN NGUYỄN TRƯỜNG XUÂN

LÊ NGỌC HÙNG

BONVILAIN

CONTRACT

M ANAGER

(CHOI JAE HON)

LEAD GEOTECHNICAL

ENGINEER

(DANG THANH HAI)

NGO XUAN HANH

ACCOUNTING TEAM

(HUY BÙI QUANG)

CLERK

(NGUYEN THI THANH)

PROGRAMME TEAM

QUANTITY SURVEYOR

CHIEF CIVIL ENGINEER

(DOAN HUU KHOAT)

S PECIAL BRIDGE

ADM M ANAGER

(KWON YONG SHIK)

BUI VAN DUONG

HO ANH TUAN

NGUYEN TRUONG QUY

NGUYEN XUAN HAI

INTERFACE

M ANAGER

PROJECT MANAGER (OH SEUNG JONG)

PHAN VAN DIEP CONTRACT TEAM

SITE SECURITY M ANAGER

(Traffic, health and safety control)

NGUYEN KHAC TOAN

(Environment Control)

PHÙNG NGỌC TÂN

TRAN DANG KHIEM

LƯƠNG NGỌC HÂN

DINH NGO C THANG

TRAN NGOC S ON

HUYNH THANH LONG

CHIEF SURVEYOR

(TRAN TRUNG THANH) DES IGN TEAM

SAFETY SUPPORTERS

H/S ENGINEER (NGHĨ A ĐỖ CÔNG)

H/S ENGINEER (NGUYEN VAN TOI)

ENVIRONMENT ENGINEER

SECURITY OFFICER

DESIGN M ANAGER

(KIM DO GYUN)

(LEE S ANG WOO)

TRAN NGOC ANH

TRAN VAN QUY

AN ĐỖ XUÂN

NGUYEN KIM THUAN

SCHEDULE ENGINEER

CHIEF ACCOUNTANT

(THAI HOANG ANH)

M ATERIAL PURCHASER

CASHIER COST ESTIM ATOR

DO THANH HAI

(115 Emergency and Safety Training)

SECURITY LEADER

LABOR CONTROLLER

WORK PROGRAM M E

M ANAGER

(NGUYEN VAN PHONG)

(Security, health and safety control)

PLANNING DEPARTMENT

PLANNING M ANAGER DEPUTY PROJECT M ANAGER

(CHOI JAE HON)

(NGUYEN VAN TRUNG )

ORGANIZATION CHART

S URVEY TEAM

HSE DEPARTMENT

PROJECT MANAGEMENT

FLAGM EN

COST CONTROL TEAM

ENVIRONM ENT

M ONITORING TEAM

SAFETY OFFICER &

SAFETY SUPPORTERS

SITE SECURITY WORKER

LABORATORY STAFF

CHIEF OF LABORATORY

QC CHIEF ENGINEER

(TRAN MINH KHANH)

QC ENGINEER QC ENGINEER ENV SUPPORTERS

QA / QC DEPARTMENT

QUALITY ASSURANCE M ANAGER

(GIAP BANG NGOC)

QUALITY CONTROL TEAM 1

HSE M ANAGER

(VU VAN THUY)

H/S ENGINEER (NGUYEN VAN THANG)

SAFETY SUPPORTERS

CAS TING YARD TEAM

ADM INISTRATION M ANAGER

(HEO S EON HAENG)

SUPERVISOR

LABORATORY

TRAN VAN CHIEN CHIEF CIVIL ENGINEER

(TRINH XUAN DAI)

CHIEF STR ENGINEER

(Van-Hau NGUYEN)

(DOAN TUNG)

LE DUY THANG

PHAM VAN HANH

NGUYEN THANH LONG

ADMINIS TRATION DEPARTMENT

CONSTRUCTION M ANAGER

(S ONG HWA YOUNG)

ASSITANT CONSTRUCTION M ANAGER

(KIM S IN MYOUNG, JO HAN SAEM)

ADMINIS TRATION TEAM

NGUYEN MINH TU

VU TIEN HUNG

CONSTRUCTION DEPARTMENT

TYPICAL BRIDGE

S ƠN NGUYỄN HÙNG

NAM ĐỖ ĐÌNH

DOCUM ENT CONTROLLER

THU LÊ THỊ THU NGUYỄN HOÀI BÁCH NGUYỄN VIẾT

NGO GIA PHUONG

LE VAN THANH

SITE SECURITY WORKER

M&E

M &E ENGINEER

(NGUYỄN QUANG KHẢI)

NGUYEN NGOC TRINH

H/S ENGINEER

(NGUYEN KHANH TOAN)

(Security, health and safety

control)

SAFETY OFFICER &

SAFETY SUPPORTERS

SITE SECURITY M ANAGER

SECURITY LEADER

SECURITY OFFICER

NGUYỄN HỮU THẮNG

QUALITY CONTROL TEAM 2

QC CHIEF ENGINEER

(NGUYỄN NHÂN )

QC ENGINEER

NGUYỄN KHẮC TÚ

ĐỖ VĂN DUY

NGUYỄN TRƯỜNG CUNG

LE THANH SON TRAN ANH TU

5.2 PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR TYPYCAL BRIDGE

5.3 PERSONNEL ORGANIZATION FOR SUB – CONTRACTOR SPECIAL BRIDGE

Project Executive Director / Giám đốc ban điều hành

Mr Lê Lệnh Bắc Phone: 0987.520.820 Email: cau17.lelenhbac@gmail.com

Construction Manager/

Chỉ Huy Trưởng

Mr Lê Thảo Tâm Phone: 0987.520.820 Email:Xuonggcck.thaotam17@gmail.com

Designer/

Thiết kế

Mr Lê Minh Trà

Phone: 0912-337-176

Mr Bùi Trần Hà

Phone: 0983-718-345

QA, QC/

Quản lý chất lượng

Mr Ngô Thế Quỳnh Phone: 0916-042-060

Construction Team/

Bộ phận thi công

Mr Trần Hữu Thắng Phone: 0983-899-315

Mechanical Team/

Bộ phận máy thi công

Mr Cao Tiến Sơn Phone: 0985-320-691

Surveyor Team/

Đội Trắc đạc

Mr Khuất Hữu Thuận Phone: 0972-796-481

S.H.E/

Bộ phận An tòan, Sức khỏe,

Môi trường

Mr Nguyễn Quang Hiếu Phone: 0919-780-066

Mr Nguyễn Thanh Thản Phone: 0913-560-427

Design Team/

Tổ Thiết kế

QA, QC Team/

Tổ quản lý chất lượng

Mr Cấn Mạnh Hùng Phone: 0903-288-831

Mr Lê Văn Long Phone: 0947-211-268

Concreting Team/

Tổ Bê tông

Rebar/ PT strand Team/

Tổ Cốt thép/

cáp DƯL

Form Work Team/

Tổ Cốt pha

Clinic Team/

Tổ Y tế

Safety Team/

Tổ An toàn

Mr Phạm Ngọc Tiến Phone:

01686-539-171

Traffic Assurance Team/

Tổ Đảm bảo giao thông

Planning,QS Team/

Bộ phận Kế hoạch, khối

lượng

Mr Lê Thăng Quân Phone: 01683-636-867

Testing Team/

Tổ Thí nghiệm

6 EQUIPMENT AND MANPOWER

6.1 EQUIPMENT

The list of equipment and manpower for a 1 team of road re-instatement as below

List of equipment for road re-instatement for 1 team construction

No Equipment Description Unit Quantity Remarks

6.2 MANPOWER

Number of workers for road re-instatement for 1 team construction

No Manpower Description Quantity Remarks

Equipment and manpower may be changing base on site condition

7 DESCRIPTION OF MATERIAL

a, Materials for sub-base shall be free of unsuitable materials as specified below:

- Material encountered in cut areas and in the foundation of the embankment that is

unsuitable for the planned use shall be excavated and disposed of as directed by the

Engineer Backfill as necessary shall be with approved material

- Highly organic clays and silts, peat, soils containing large amounts of roots, grass and

other vegetable matter are considered to be unsuitable

b, Besides, stabilized aggregate material for sub-base will obey the requirements for grain size having Dmax = 37,5 mm as follows:

Size of square

Percent of

passing sieve

mesh

c, Requirement Criteria of materials grade aggregate

No

1

2

Bearing ratio CBR at compactness K98,

5 PP index = Index of Plasticity Ip x % of passing

7 Compaction density ( Kyc ), %

(Method II -D) Notice:

(*) Liquid and plastic limit is determined by testing with percent of passing 0,425mm sieve mesh (**) Flat rhombic piece has thickness or width <= 1/3 length

Testing with grain size which have diameter > 4,75mm and seize 5% mass of sample Content of flat rhombic piece is determined by average of results of each grain size

8 CONSTRUCTION PROCEDUCE

8.1 WORKING FOLLOW

8.2 DESCRIPTION OF WORK SEQUENCE

 Prepare Construction

 Prepare material Sub-base

 Sub-Base Materials must be acceptable by consultant

 Sub-Base Materials must be gathered to dump at the construction site to conduct the inspection, assess the quality of materials.

 Preparation of works

 Sub-base materials shall only be placed if final layer of black sand material has been passed with the Field Density Test and has been accepted In any cases, if the

preceding layer not meeting compaction requirement, such layer shall then be

scarified, homogenized, given the adequate moisture and shall be compacted again in accordance with the required densities

 For the foundation of the site work or the old road surface, to detect treatment

thoroughly spoiled positions locally.

 Preparation for construction equipment:

Fully mobilize major equipment such as dump truck, rollers, rammer, level machine and manpower.

 Sub-base construction

 The Sub-Base material shall be placed and compacted by layers in accordance with technical requirement and full foundation of Sub-Base as shown on approved working drawings Since thickness of Sub-Base is 80cm layer and shall be spread in layers with un-compacted thickness up to 25cm Compaction shall be in accordance with specifications and using Roller or rammer Sub-Base material at the location where roller can not access shall be thoroughly compacted by use of mechanical rammer Care shall be taken to prevent segregation of the material into fine and coarse parts.

 Sub-base material shall be transported by dump truck and unloaded to the site and leveled by worker After unloading, the Sub-Base material moisture shall be checked

by visual by the Engineer If material contains too much moisture to obtain required compaction degree, the material shall be dried out before compaction, if not enough moisture it will be sprinkled with water as directed by the engineer.

 Immediately following final spreading and smoothing, each layer shall be compacted

to full width by approved roller, and shall continue until the entire surface has been rolled and each layer shall be compated to at least 98% of the maximum dry density as determined by procedure of compacting soil, ballast in laboratory 22TCN 333-06

 Any irregularities or depressions that develop shall be corrected by loosening the material at these places and adding or removing material until the surface is smooth and uniform At all places not accessible to the roller, the material shall be compacted thoroughly with approved tampers or compactors.

 The finished Sub-base shall not vary more than 15mm above or bellow the planned grade at any point, The thickness of the finished sub-base shall be not thiner than 15mm of the thickness requirement at any point

9 QUALITY CONTROL

Quality control shall follow Quality plan Doc No DLM–IMP–PPG–ZPQ–J00–00001–E of the project and is the part of this method statement

“Inspection and Testing Plan” is attached in Appendix

10 ENVIRONMENTAL, SAFETY AND HEALTH CONTROL

- Safety and Health Management Plan, Doc No DLM-IMP-PPG-ZSO-J00-00003–E/V

- Enviromental Management Plan, Doc No DLM-IMP-PPG-ZSO-J00-00002-E/V

- Traffic Management Plan, Doc No DLM-IMP-PPG-ZPO-J00-00004-E/V

During construction process, the Contractor pays more special attention to safety issues on the construction site To achieve that, the Contractor implements the following works

- Safety Management will follow “Plan of Safety and Health Control of the project” and as a part of this measure

- Before and during the backfill, basic preventive measures will be fully implemented to avoid accidents or incidents

Items to control safety are as follows:

No Foresee accidents Preventive actions

Before backfill, hold a meeting with the personnel on the purposes of generally explaining all work contents as well

as how to construct effectively

2 Traffic accident

Limiting speed (20 km/h) on the construction site

Vehicles must have signal instruction staff when going backwards

Arrange personnel in charge of turn signal at the entrances

3 Electrical accident

Install adequate earthing for equipment with stringent requirements as welders and generators

Do not use the device with current exceeding capacity of the conductors and protective circuit breaker

Be sure to use the appropriate outlet for the outdoor power outlet

The welding is carried out with full suitable protective equipment as welding helmet, leather gloves, and aprons

 Do not carry out welding work outdoor without shield when it rains

 Conduct daily equipment inspection to confirm the equipment status

4 Other works Need to arrange proper lighting system when conducting

work at night

- Environmental control is followed “Environmental Management Plan for the project” and as a part of this method statement

- Responsibility to protect surrounding environment will be implemented during construction process and complied with Conditions of Contract and Environmental Protection Law of Vietnam and other relevant laws such as Decree No.175/CP of the Government, Decree of guiding the implementation of Vietnam Environmental Protection Law, 1994

More attention is to control the following items:

a) If the gathering time is longer than 2 days, measure of covering anti-dust mesh will be considered

b) All grounds of vehicles must be washed before moving

If there are any other problems arising on the construction site, preventive and remedial measures will

be applied and proceeded immediately as quickly as possible

These issues will be controlled in term of management by the respective Construction manager and in term of actual operations by respective Engineer