ER420_MS of Rigid Pavemnet Works_r1

7/28/2019 ER420_MS of Rigid Pavemnet Works_r1

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ER420_MS of rigid pavemnet works_r1.doc

ULT CORPORATION PTE LTD

7E PIONEER SECTOR 1

SINGAPORE 628446

TEL: 64153078 FAX: 68631928

ER420-NEW ROAD LINK BETWEEN UPPER CHANGI

ROAD AND UPPER CHANGI ROAD EAST

METHOD STATEMENT

Rigid Pavement Construction

PREPARED BY : HARIRAM MANOHARAN

APPROVED BY : GOO KIANG TIONG, JIMMYSAFETY OFFICER : STEVEN LIM

DATE OF SUBMISSION :

REVISION : 0


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TABLE OF CONTENTS:

1. Objective

2. Project Overview

3. Resources: Plant and Manpower

3.1. Hierarchy Chart for this Operation

3.2 Relevant certificates for manpower and Equipment

4. Method Statement

4.1. Preparation work4.2. Work Procedure

4.3. Sequence of works

5. Safety precautions

6. Emergency Plan6.1 Evacuation Plan

6.2 Damage to services

6.3 Lists of essential Personnel

7. Safety and Environmental

7.1 Lists of personal protective equipment (PPE)

7.2 Permit to Work System

7.3 Risks Assessment and hazard Analysis


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1) OBJECTIVE:-The purpose of this document is to describe the methodology for the construction of

Rigid Pavement. The Work includes excavation to the required level, subgrade

formation, sub base, base course and rigid pavement works.

2) PROJECT OVERVIEW:-The works under contract ER420: New road link between Upper Changi Road and Upper

Changi Road East mainly comprises of the following:

Construction of new road between Upper Changi Road and UpperChangi Road East

Construction of New junctions in the Upper Changi Road and UpperChangi Road East

Construction of Rigid Pavements at the junctions Widening a Part of Upper Changi Road Milling and Patching works in Upper Changi Road and Upper Changi

Road East

Construction of Drains, Box culverts and sumps Construction of Two Bus Bays and Bus Shelter Slabs Installation of railings

3) RESOURCES:PLANT & MANPOWER:-Sl.No Item Qty

Machinery:

1 Excavator with LM certificate 1

2 Air Compressor 1

Manpower:

3 Project Manager 1

4 Site Engineer 1

5 Surveyor 1

6 Site Supervisor 17 Pavement supervisor 1

8 Safety Supervisor 1

9 General Worker 7


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Project Manager

Site Engineer

Pavement SupervisorSafety Supervisor

Foreman

General Worker

Excavator operator

Surveyor

3.1) HIERARCHY CHART FOR THE OPERATION:-

3.2) RELEVANT CERTIFICATES FOR MANPOWER AND EQUIPMENT:-Updated relevant certificates will be submitted before the commencement of work.

4) METHOD STATEMENT:-4.1) PREPARATION WORK

1. Obtain verbal or written instruction, and information on site plans, serviceslocation and setting-out plans. Apply necessary permit from EMAS for lane

closure (if applicable), Power Grid for NCE clearance, PUB for drainage works

and Nparks for tree felling approval before work commencement.

2. Make necessary temporary warning signs to ensure safety and smooth operationaccording to LTAs Code of Practice for Traffic Control at Work Zone.

Registered land surveyor to check and verify setting-out plan. Proceed to set out

road alignment before works to commence.3. Conduct trial trenches and cable detections to determine all services affecting

critical works. When the position of services is known in relation to the works,

inform it of LTA to either follow up a protection plan or to divert the affected

services. The Utility Agency shall be kept informed of all protection works


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4.2)WORK PROCEDURE

After completion of drainage works, construction of rigid pavement shall commence.

Rigid pavements are to be cast by panels in continuous pours. When and where

applicable, construction joints, longitudinal joints and expansion joints as per LTA

Standard Details of Road Elements should be laid.

1. Land surveyor to check and verify setting-out plan. Proceed to set outalignment before works to commence. Determine the RL of the carriageway

prior backfilling.

2. Excavate the affected embankment/earth slope and make a new slope.3. The depth of excavation is 725mm from the proposed ground level (not

applicable to reconstruction of rigid pavement). For reconstruction of rigid

pavement, the existing sub grade & base layer shall not be disturbed.

4.

The method of compaction being used must be able to produce a compactedfilled material with minimum field density of at least 95% of the maximum dry

density. The sub grade material shall be tested according to M & W

Specifications requirements.

5. Lay and compact 300mm thickness sub base material in layers of not more than200mm thickness from the edge of existing carriageway to location of the

proposed road kerb. The in-situ field density of the compacted layer expressed

as percentage of the maximum dry density determined in accordance with

BS1277 Test No.13 shall not less than 95%.

6. Proceed with construction of K2 kerb and drop inlet chamber followed bybackfilling with approved material between the drain and the constructed K2

kerb.

7. Lay and compact 200mm thickness base course material.8. Proposed base course shall be tested according to M & W Specifications

requirement.

9. Continue rolling until the base course material is compacted to a dry density ofnot less than 98% of the maximum dry density as determined by BS 1377 Test

No. 14.

10.Lay a layer of geotexile membrane class A on top of subbase layer.11.Lay a layer of WSFR B8 reinforcement with concrete spacers to secure position

during casting. Install 25mm dia smooth dowel bar at 300mm c/c and treated

with bond breaker compound over half its length.


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5) EMERGENCY PLAN:-6) Work site shall be cordon off from public access.7) Proper barricade and signage shall be provided to warn the workers to divert

away from deep excavation

8) Work area must be cleaned and stagnant water cleared daily.9) All workers shall wear Personal Protective Equipment e.g. reflective safety vest,

safety helmet within the site.

10)Site supervisor shall supervise throughout the entire works; he is wholly in-chargeof safety, supervision and traffic control in work areas.

11)Where excavators are used, care shall be taken to ensure that no materials arestacked within the swinging area of the excavator.

6)

EMERGENCY PLAN:-6.1) EVACUATION PLAN:-Upon the occurrence of work site accident, the emergency evacuation plan is as

follows:

Site work in the vicinity will be stopped The reporting of the occurrence of accident will go up the company hierarchy

i.e. workers inform supervisors/engineers, who will inform the project manager,

and then the RTO and LTA will be informed

Site and safety supervisors will be taking charge of securing the area Any hurt personnel will be carefully shifted to a secure location for first aid and

subsequent evacuation to nearby hospital

Unhurt work personnel will be gathered at a safe with headcount accounted for.They will receive further instructions

Accident area to be investigated and subsequently cleared.6.2) LIST OF ESSENTIAL PERSONNEL:-

Name Designation Contact number

Jimmy Goo Project Manager 9695 7413

Hariram Site Engineer 9447 7749

Lee Shang Keng Safety Officer 9666 0582

Soh Eng Soon Site Supervisor 9068 4578

Fong Heng Wong Site Supervisor 8402 5141

Solaiappan Subramanian Site Supervisor 8433 2276

Velayutham Muniyandi Safety supervisor 8259 0048


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7) SAFETY AND ENVIRONMENTAL:-7.1) List of Personal Protective Equipment (PPE):-

S/No PPE

1 Safety Helmet

2 Safety boots

3 Reflective vest

4 Hand Gloves

5 Full Body Harness( If applicable)

6 Face Mask and Safety Goggles

7.2) Permit to Work System:-All relevant Permits to Work forms would be submitted before the operation.

7.3) Risk Assessment and Hazard Analysis:-Kindly refer to the attached.

ER420_MS of Rigid Pavemnet Works_r1

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