rzwsl4h壳牌亚洲skm地区认证培训

OrientationWorkshopWhatisanexcavation?Whydowehavetodoit?Whathavebeenexcavationincidentsinthisindustry?在这个行业Whatisanexcavation?trenches,ditches,benches,wellsorcanalsWhydowehavetodoit?为什么TomaximisespaceontheservicestationsiteandhavetanksundergroundsystemsanddrainageaswellasbuildingfoundationsandfootingsWhataretherisks?AccessTimeexposedEdgefailureduetovibration,plant,materials,water,spoilUndergroundservicesApersondoesnothavetobecompletelyburiedbysoiltobeseriouslyorfatallyinjured!!m.Fatalitiesarecausedbysuffocation,lackofcirculationand/orfallingobjects.Needtoremember340Toremoveaburiedlegapersonmustexertaequivalentto340kg在移除一条被掩埋的腿时，一个人必须施加

360Apersoncoveredbyacaveinuptotheirchest,candieofinternalinjuriescausedbysoilpressure.Theequivalentforceappliedtothechestisabout360kgcausingsuffocation.当一个SeriouslyorFatallyInjured”FailureIndicatorsSubsidenceandBulging沉 和肿 FactorsaffectingwallstabilityMaterialAccumulationonExcavationSides材OTHERS:

EquipmentWorkingonEdges设

installationsmustbeidentifiedandutilitycompaniesnotified. 知ARiskEvaluationshallbeconductedpriortoexcavationworks.Riskstobeevaluatedincludehazardousatmospheres.Foreachidentifiedrisk,appropriateprotectionsystemsmustbeenforcedACompetentPersonmustidentifyhazardousatmospheresorsituationsofconfinedspaces.挖掘Gasescommonlyfoundinexcavationsand Peatyground&decaying Carbondioxide,hydrogensulphide二氧化碳、硫化氢 Carbondioxide,methane,hydrogensulphide Reclaimedlandandtipfills Naturalgas&carbondioxide天然气和二氧化碳 Carbonmonoxide,carbondioxide,hydrogen Petrolfumes,LPG,kerosene Petroleuminstallationandservice汽油味、液态丙烷、 ToxicflammableandasphixiantgasesGas气 Flammable可燃Asphixiant窒MethaneHydrogenCarbondioxideNaturalgasCarbon“CompetentPersonshallperformexcationinspection:主管人员需2Daily2Tensioncracks,bulging,percolatingand/oraccumulatedwater,slidingconditionsare“CompetentPersonshall:主管人员2Evacuatepersonnelfromexcavationwhenhazardoussituationsaredetected”当危险情WateraccumulationCompetentPersonshallperformTensioncracks,bulging,percolatingand/oraccumulatedwater,slidingconditionsaredetected注意发现这些情况：扩张：EvacuatepersonnelfromexcavationwhenhazardousObjectsfallingoverworkers物“Allexcavatedmaterialshallbepiledinsuchawaythatitcannotfinditswaybacktotheexcavation.Excavatedmaterialshallbeplacedatleast1.0meterawayfromexcavationedge”Tools,equipmentandheavymachineryshallnotbeplacedorusedadjacencttoexcavations,sincetheymightfallintotheexcavationorcauseexcessivevibrationstocausecollapseoftheexcavationwalls.工具、设备和重型机械不能安AllexcavationshallhaveappropriatemeasurestopreventpublicandVisiblephysicalbarriersandsignsshallbeprovidedaroundexcavations”在挖.Visiblephysicalbarriersandsignsshallbeprovidedaroundexcavations.在挖掘作业附近需要ProvideprotectiondesignwhenexcavationcanaffectintegrityStablerock2type1(moststable)i.e.sandstone&granite类型1——稳stable类型3——土壤颗粒无连接性例：大多数土壤干燥但是不稳定LayeredgeologicalstratawhichisassessedbytheweakestsoilintheLetsseewhatriskswecanJSAExerciseInpairs,takeoneofthedesignfootprintsandprepareaJSAofhowtheexcavation&tankinstallationshouldbeconducted两两配对合作，PassyourcompletedJSAontothenextpairwhowillreviewwhetheryouhavecoveredallrisks(inasimilarwayaconstructionandprojectmanagerwillneedtodothis)讲你们完成的作业安全分析递交NowwewillcomparetheJSA’stosomeincidentstodetermineifyourJSA(ifimplemented)wouldhavepreventedtheincidents现在我ExcavationincidentinretailTheemployeeofatankinstallationcontractorwasfatallyinjuredduringtheinstallationofanUndergroundStorageTank(UST)(neckandbackinjuries).Thecontractoremployeewaskneelingontopofthetank,whichhadalreadybeenloweredintotheexcavation,buthadnotbeenstabilized,whenonesideoftheexcavationcollapsedontothetank.ThecollapsingsoilcausedthetanktomoveandthecontractortolosehisbalanceandfallapproximatelymetersfromthetopoftheEventsleadinguptotheSubcontractorpreparedexcavation2daysbeforetanksweretobeinstalled在槽罐PTWissuedtocontractorbutrequirementswereeithernotcommunicatedtotheSCExcavationwallstoosteep(verticalwithnoadditionalsupporteventhoughproceduresidentifiedslopingexcavationwalls即使程序验证过挖掘墙壁的倾斜度，挖LoweredtheUSTintotheexcavationcontractoremployeeusedaladdertoclimbontopoftheUSTtocheckthelevelofthetankandtounhooktheliftingchains把地下储Tankhadnotbeenstabilisedbeforeworkergotontopofthetank在工人到达管槽顶端Abouttounhooktheliftingchainwhenasideoftheexcavationcollapsed&theclay22metersfromthetopofthetankintotheexcavation.关于吊举链条，当挖掘坑一方Aftertheincidentitwasdeterminedthatthewallsoftheexcavationweretoosteep&didnothaveshoring事故发生后，挖掘墙壁太陡并且无支撑被认定。WhatshouldweBeforeinstallationwork,reviewthecontractor’sJSAtoensureconsistencywithEnsurethatthecontractorcommunicate/discussWPrequirementswithallcontractoremployeesandsubcontractorsinvolvedbeforeworkbegins.在开工Whenselectingcontractorstoperformtankinstallationwork,verifytheirtankplacementproceduresincorporatetankstabilisationbeforeliftingequipmentdisconnection&beforepersonnelareallowedtogetonthetank.当选择承包CONTRACTORFATALITY<2 INCIDENTDESCRIPTION(Cont SouthernConDuringthelunchbreak,oneworkerstayedinthetrenchtosmoke,beforeheleftthesite.Hiscolleague,returningtothesitetocollectsomemoney,steppedontheearthcolumnadjacenttothetrench.Thecolumncollapsedinasinglemasspartiallyburingtheworkerinthetrenchuptohisneckandtotheotherworkerlessseverely.挖掘出来的材 ExcavatedMateriaInitialExcavation(1.5mx0.8m)PartiallyFille

SecondWorkerStandingonEarthColumnbetweenTrencheDirectionofCollap

WorkerinTrenchNewTrencNotToScal 800m 400m 800mmaybetimber,concrete祭祀类型支撑台——在Trenchsupports(eg.shields,boxesorcagesRockbolts&groundanchorsExcavationplanningRequireddepthofexcavationshoreifover1.5NatureandconditionofgroundincludingcontaminationNatureofwork&nearbyactivitiesStatic&movingloadsneartheexcavation(edgeclearance>excavationLikelihoodofwetweatherPreviousgrounddisturbances