31240_PD_Z0004_Method_Statement_for_Sheet_Pile_Wall

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1、VenetianCotaiLtd–Parcel3WP31240–WestPodiumSubstructureMethodStatementofConstructionSheetPileWall得寶建築集團有限公司TOPBUILDERSGROUPLTD.VenetianCotaiLtd,Parcel3WP31240-WestPodiumSubstructureMethodStatementofConstructionSheetPileWallRev.DatePreparedbyApprovedby

2、Status127May2013RosannaCheangEdwardLeungC215Jun2013RosannaCheangEdwardLeung1ObjectiveVenetianCotaiLtd–Parcel3WP31240–WestPodiumSubstructureMethodStatementofConstructionSheetPileWallUnderworkspackage,installationoftemporarysheetpileatVenetianCotaiParc

3、el3.(SeeAppendix1)1ScopeofWorksTheconstructionofsheetpilewallisconsistedofinstallingsuccessiveindividualsheetpilematerialfromgroundlevel(+4.3~+4.5)todesignedlevelwhichwilleventuallyformingapartoftemporarylateralsupportingsystemtofacilitatesubsequente

4、xcavationwork.Thedepthofsheetpileis24m(from+4.5to-19.5).Eachsheetpileisinstalledbyavibratinghammer,drophammer,orhydraulichammer.Successivesteelsheetpileswillbedrivenintothegroundwithinterlockingalongbothsidesofsheetpiletoformacontinuouswallofsheeting

5、attheboundaryofexcavationlocation.(RefertoAppendix2forthecataloguesoftheequipmentsused)2MonitoringSettlementmarkers,piezometers,buildingtiltingmarker,vibrationcheckpointand/orotherspecifiedgroundandnearbystructuresmonitoringstationsshallbeinstalledan

6、dinitiallysurveyedpriortocommencementofwork.Detailsofthemonitoringworksshallfollowmonitoringplans.(RefertoAppendix3)3ConstructionMethoda.Setoutaccuratelythelocationandextentofareatobeopencutorexcavatedandmarkbymeansofsuitablepegsoralikeasnecessary.b.

7、Priortothecommencementofsheetpilingworksforanysection,itisnecessarytoensureundergroundservicesorutilitiesthatmaybeaffectedbytheworkshavebeendivertedorsecured.c.Excavationoftrialpitstodisclosethesoilprofileandtoconfirmthelocationofexistingundergroundu

8、tilities,ifany.Obtaininitialreadingsatmonitoringcheckpointsinstalledpreviouslyshownonthemonitoringplan.d.Shallowobstructionistoberemovedbybackhoefollowingbybackfilling.Deeperobstructionistoberemovedbypre-drillingmethodwherenecessary.(theundergroundVe