1新版道路交通改道施工方案英.docx

1新版道路交通改道施工方案英.docx

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1新版道路交通改道施工方案英

MethodStatement

DocumentTitle:

ConstructionofTrafficDiversionRoads

DocumentNo.:

EXW-P011-0000-CM-CHE-MT-00068-Rev.CD

Name&Signature

Position

Date

PreparedBy:

TechnicalEngineer

ReviewedBy:

TechnicalManager

ApprovedBy:

ProjectManager

RevisionHistory

Revision

Date

Detailsofrevision

CA

27-Apr-2014

Submitforapproval.

CB

28-May-2014

ComplywiththecommentsfromHalcrowdatedon6-May-2014

CC

12-Oct-2014

ComplywiththecommentsfromHalcrowdatedon23-Aug-2014

CD

20-Nov-2014

ComplywiththecommentsfromHalcrowdatedon18-Oct-2014

Section

CONTENTS

Page

1.0

Purpose

3

2.0

ScopeofWork

3

3.0

Responsibilities

3

4.0

PermitsandLicences

3

5.0

SequenceofConstructionofTrafficDiversionRoads

4

6.0

ResourcestobeusedforConstructionofTrafficDiversionRoads

4

6.1Reference

4

6.2Control,Storage&ProtectionofSpecificMaterials

5

7.0

DetailedmethodofCarryingOutthisMethodStatement

5

8.0

QualityControlandRequirements

10

9.0

Health&SafetyConsiderations

10

9.1Generalsafetyissues

10

9.2EmergencyArrangement

11

9.3ConsentsandPermits

11

10.0

EnvironmentalConsiderations

12

10.1EnvironmentalAspects

12

10.2Housekeeping

12

11.0

Appendices

12

AppendixA

-

RiskAssessment

AppendixB

-

ToolBoxTalk

AppendixC

-

InspectionandTestPlan

AppendixD

-

ChecklistForm

Section1.0:

Purpose

Thismethodstatementistodescribetheprocedureandtechniquesofconstructionoftrafficdiversionroadsinasafemannerthatwillsatisfyalltherequirements.

Section2.0:

ScopeofWork

Thismethodstatementdescribestheactivitiesrelatedtotrafficdiversionroads,includingsiteclearance（REF:

EXW-P011-0000-CM-CHE-MT-00002）,embankment（REF:

EXW-P011-0000-CM-CHE-MT-00011、EXW-P011-0000-CM-CHE-MT-00006）,sub-grade（REF:

EXW-P011-0000-CM-CHE-MT-00011、EXW-P011-0000-CM-CHE-MT-00006）,roadbase（REF:

EXW-P011-0000-CM-CHE-MT-00025）,asphaltwork,installationofpolelight（REF:

EXW-P011-0000-CM-CHE-MT-00085）,trafficsignal（REF:

EXW-P011-0000-CM-CHE-MT-00096）,installationofsignboard,safetybarriersandroadmarkingetc.Theseactivitiesarecoveredinseparatedmethodstatement.

Section3.0:

Responsibilities

TheworkwillbecarriedoutbyCHEC,headedbytheConstructionManager.

•ConstructionManager–Partiallyresponsiblefortheconstructionandarrangementofcivilworks,inchargeofsiteengineer.

•HSEEngineer&HSEOfficer–ResponsibleforHSEonsiteduringconstruction,coordinatewithSiteEngineer,infrastructuresuperintendent.

•QCEngineer–Responsibleforqualityofstructureonsiteduringconstruction,coordinatewithSiteEngineer,requestforInspectionandTestingprocessesandcoordinationwiththeEngineer’sInspectorsrepresentative.

•Surveyor–Responsibleforsurveyworkandsettlementmonitoringworkonsite,coordinatewithSiteEngineer,thesurveyrequestprocessandcoordinationwiththeEngineer’ssurveyorrepresentative.

•SiteEngineer–Siteengineerresponsibleforconstructionofwork,coordinatewithHSEEngineer,QA/QCengineer,surveyor,willinchargeofforemen,operators,drivers,labours,reportsdirectlytoconstructionmanager,requestforInspectionandTestingprocessesandcoordinationwiththeEngineer’sInspectorsrepresentative,aswellassupervisor.

•Foreman-Directlysupervisestheworkactivityonthesiteandhasfullcontrolovertheuseofthelabour,plantandequipment.Heensuresthattheworkiscarriedoutinfullcompliancewiththespecification,andinamannerthatconformstothesafetyrequirements.HereportstotheSiteEngineerwhentheworkiscompleteandreadyforinspection.

•Allpersonnel（operators）shouldbequalifiedandtherelevantcertificateshouldbeavailable.

Section4.0:

PermitsandLicences

Whererequiredasperprojectcontractspecification,permits&licencesshallbeobtainedfromrelevantauthoritiespriortostartwiththerelatedworksoractivities.

Section5.0:

SequenceofConstructionofTrafficDiversionRoads

Thesequenceoftrafficdiversionroadsasshowninthefollowingchart:

SequenceofTrafficDiversionRoads

Section6.0:

ResourcestobeUsedforConstructionofTrafficDiversionRoads

6.1References

•QCS2010

•HSEplan&ProjectqualityplanapprovedbySC.

•MethodstatementswhichhavebeenapprovedbyEngineer:

Methodstatementofengineeringsurvey:

EXW-P011-0000-CM-CHE-MT-00001.

Methodstatementofsitedemolitionandclearance:

EXW-P011-0000-CM-CHE-MT-

00002

Methodstatementofsoilfillingandcompactionforroadworks:

EXW-P011-0000-CM-CHE-MT-00011

Methodstatementofaggregateroadbaseandsub-base:

EXW-P011-0000-CM-CHE-MT-00025

•ApprovedBCType-1andSCType-1designmixes.

6.2Control,Storage&ProtectionofSpecificMaterials

•Materialsshallbestoredandhandledastoassurethepreservationoftheirqualityandfitnessforuseintheworks.Evenaftersourceapprovalhasbeengivenmaterialsmayagainbeinspectedandtestedbeforeusedinthework.

•Eachshipmentofmaterialsisloaded,shouldbeblockedandsecurelyfastentoavoiddamagesduringtransportation.

•Theimportantmaterialsshouldbekeptcleanawayfromoil,grease,excessiveheatandoutofthedirectraysofthesun.

•CHECshalltakeallnecessaryprotectionmeasuresinthestorage,handlingandstockpilingofmaterialstopreventcontaminationofmaterialbytest.

Section7.0:

DetailedMethodofCarryingOutthisMethodStatement

7.1Preparationpriortowork

•Allequipmentsaretestedandsuitableforthecurrentwork.

•Alltheequipment,material,andpersonnelstaffhavebeenpreparedinsitu.

•Alltheequipmentsarefunctioningalltime.

•Electricalpowerwillbemainlysuppliedbygenerators.Thegeneratorswillbeavailableandplacedclosetotheworkingarea.

7.2Permitshallbeobtainedbeforecommenceofwork

•AllmaterialsandmixdesignsshallbeapprovedbyEngineerpriortouseinconstruction.

•AllnecessaryWorkpermitsshallbeobtainedpriortothecommencementofanyactivityonthesite.PersonnelresponsibleforsupervisingtheWorksonsite（Engineers/Forman）shallbeawareofthepermittoworksystemandpermitshallbevalidthroughouttheentiredurationoftheoperation.

•AllequipmenttobeutilizedonsiteshallhaveavalidThirdPartyCertificate.

•Competentpersonnelshallberesponsibleforliftingactivities.

7.3Checkingofundergroundutilities

•Priortocommenceofworks,undergroundutilitiesshallbecheckingaccordingtoas-built,undergrounddetectingreportsetc.

•Ifthereisanyundergroundutilityindesignedarea,propermethodshallbeimplementedtoprotecttheutility.

•Workpermitshallbegivenbyspecificauthoritypriortoworkifanyundergroundutilitycouldhavebeenfoundonworksite.

7.4SiteDemolitionandClearance

•Refertothelatestmethodstatementofsitedemolitionandclearance（documentno.:

EXW-P011-0000-CM-CHE-MT-00002）.

7.5SoilFillingandCompactionforRoadWorks

•Refertothelatestmethodstatementofsoilfillingandcompactionforroadworks（documentno.:

EXW-P011-0000-CM-CHE-MT-00011）.

7.6Aggregateroadbase

•Refertothelatestmethodstatementofaggregateroadbaseandsub-base（documentno.:

EXW-P011-0000-CM-CHE-MT-00025）.

7.7Asphaltwork

7.7.1SupplyandSprayofPrimeCoat:

Priortolayoftheasphaltmix,primecoatofMC-70mediumcuringcutbackasphaltwillbeappliedtoanabsorbentroadbasesurfacewhichwillprepareatreatedbaseasperQCS2010,Clause5.12insection6.ThePrimecoatpenetratesintothebaseandplugsthevoidsandhardensthetopandhelpshindittolayittotheoverlayingasphaltcourse.Applicationofprimecoatwillbeasfollows:

•Primecoatwillbesprayedoverthepreparedroadbase.

•Theapplicationratewillbebetween0.75and1.00lit/Sqm.andtheapplicationtemperaturewillbebetween60oCdegreeand85oCdegree.

•Theprimecoatwillbecutbackbitumenconsistingofa60/70penetrationgradebitumenandkerosene.Theresiduefromthedistillationtest,carriedoutto360oC,shallbeaminimumof55%（byvolume）,asdeterminedbythedifferencemethod.

•Ifthesurfaceiscoveredinwind-blowndustorfineaggregatethenapowerbroomwillbeprovidedtoremovethematerialsandcleantheareabeforeapplicationofprimecoat.

•Theprimecoatwillbesprayedbywell-equippedmechanicalpumpandmechanicaldistributorfixedwithatanker（truck）.Blottermaterialwillbespreadfromtrucksoperatedbackwardsothatthewheelswillnottravelinuncoveredwetasphalticmaterial.Whenapplyingblottermaterialtoanasphalttreatedlanethatadjoinsalanethathasnotbeentreated,astripatleast200mmwidealongtheadjoiningedgewillbeleft.

•Theprimecoatwillbeappliedto1/2oftheroadwidthatatimeandgetaslightoverlapofasphaltmaterialalongadjoiningedgesofthelanes.Thickpaperwillbeusedtoprotectthepreviousapplicationjointsandotherappurtenances.

•Trafficwillnotbepermittedontheprimedsurfacesoonthan48hoursaftersprayofprimecoat.

•Asphaltmixwillbenotpermittedsoonerthan2hoursafterapplicationofprimecoatmaterial.Ifthereisanyexcessiveblottermaterial,dirtorotherobjectionablematerials,thesurfaceirregularitieswillbecorrectedbeforetheapplicationoftheasphaltmix.

7.7.2SupplyandLayingofBaseCourse:

•TheAsphaltBCType-1willbeusedasBase-coursewhichwillbemixaccordingtoQCSinafullycomputerizedAsphaltMixplant.AsphaltMixplantshallbeapprovedbyS