網(wǎng)殼巴基斯坦haveli1000-1200mw聯(lián)合循環(huán)電站項(xiàng)目施工方案

山東電力建設(shè)第三工程公司Haveli1000-1200MW聯(lián)合循環(huán)電站項(xiàng)目ShElectricPowerConstructionCorporationofPakistanHaveli1000-1200MWCombinedCyclePowernt二臺(tái)φ40M儲(chǔ)罐罐頂2piecesofstoragedomeroofwithdiameter雙向子午線網(wǎng)殼安裝施工方案Installationandconstructionprogramfordoubledirectionalmeridiandomeroof（倒裝法(Reverseinstallationmethod編制：審核：批準(zhǔn)：ShanghaiPuDongShenGangmechanical.CO., 錄Tableof Generaldescriptionof1General 儲(chǔ)罐網(wǎng)殼的主要技術(shù)特征MaintechnicalcharacteristicsofdomeroofofstorageDesign,constructionConstruction3.1Technical3.2Site3.3施工進(jìn)度和勞動(dòng)力組織ConstructionscheduleandManpower4ConstructionprincipleandMaterialMeridianGridstructure1頂圈罐壁驗(yàn)收要求Topsteacceptance6.2錐板安裝要求Taperteinstallation6.3Preparationoffixinggrid6.4Assemblyforbordernodalpoints,uppergridbarsandlowergridbars6.5蒙皮板安裝Covertes1錐板的焊接Taperte7.2Weldingofgridbarsandbordernodalpoints7.3蒙皮板的焊接Covertes7.網(wǎng)殼頂強(qiáng)度和嚴(yán)密性試驗(yàn)domeroofstrengthandtightness 措施Measuresofquality9.1體系Systemofquality9.2qualitycontrolTechnicalfilesofHSEHSEmeasureofHSE方針目標(biāo)TargetandofHSEHSEmanagementSafetyGeneraldescriptionofGeneralTheconstructionoftwo40Musingthemeridianlattices,herringbonepatternistakentoarrangethecoverteonroof.Constructionaddress： 網(wǎng)殼設(shè)計(jì)制造單位：浦東伸鋼機(jī)械Meridiandomeroofdesignandmanufacturing Designandmanufacturing formainbodyofstorage：Supervision進(jìn)度目標(biāo)： 月 ConstructionReverseinstallationmethodwillbetakenastheconstruction methodofstorage.Qualityrequirementofconstructionisexcellent.Maintechnicalcharacteristicsofgriddomeroof1）網(wǎng)殼主要技術(shù)特征：Maintechnicalcharacteristicsofgriddomeroof內(nèi)徑(D=40m40mInsidediameteris40m,radiusofarchcrownisXZ2α=60°所對(duì)應(yīng)的球冠。ThemainbodyofgriddomeroofiscomposedbytwogroupsofmeridianintersectedonthesphericalfacewhichrotatedaroundaxisXandaxisZseparay.Sphericaldishedheadwithsphericalcenterangle2α=60degreeistakenasdomeroof.網(wǎng)殼型號(hào)：SGWQXYZYMeridiangriddomerooftype:SGWQdomeroof;tyofuniformgridformedbygridbarsalongXYandZYverticalne.網(wǎng)殼桿件全部采用不等邊角鋼。兩組子午線網(wǎng)桿間采用搭接，搭接面采用連續(xù)滿角Scaleneanglesteelisacceptedasgridbarsofgridstructure.Theconnectionbetweentwogroupsofmeridiangridbarsshallbelapjoint,whichusefullfilletweld.Taperteisedgememberofdomeroofwhichcombinesanddomeroofasawhole.A36。Twoendofeachgridbarjoingridbarwithsandannularbeamtogetherusingbackingteandconnectionte,connectionpartsisdonebyassemblyweldwithmaterialA36.2DesignconstructionstandardMechanicalStandards：Materialspecification generator Pressure Heatexchangers HEI(HeatExchangerInstitute),Pumps, ISO,

Manufacturer ASME,ASTM ISO,APIVibrationlevelsshallcomplywiththerequirementsofISO10816andISO7919asapplicable.InstrumentandserviceairqualityshallbeclassifiedaccordingtoISO8573.FirefightingsystemsshallbeinaccordancetoNFPA. WeldedforOilASTMA36/A36M StandardSpecificationforCarbonStructuralSteelAWSD1.1 StructuralWeldingCode--SteelANSI/AISC360- SpecificationforStructuralSteel ManualMetalArcWelding,Gas-shieldedMetalArcWelding,GasWelding,TIGWeldingandBeamWeldingofSteelsConstructionTechnical熟悉施工圖紙和有關(guān)規(guī)范、標(biāo)準(zhǔn)及石油的相關(guān)規(guī)定，質(zhì)疑Studyconstructiondrawingandrelevantcode,standardandotherregulationofpetrochemicalGuangzhouSubsidiary,wheneverhaveanyquestion,makearemarkandexaminethedrawingwithrelevantdepartmenttoclarifythepurposeofdesignandthecontentofdrawing,associateanddiscusswithdesignerintimeforthequestion.Surveysiteconditionaccordingtodrawing;knowsitepracticalconditions,constructionconditionsanddisadvantagefactors,laydownconstructionprocedureandmethod.熟悉業(yè)主制定的儲(chǔ)罐施工規(guī)則和有關(guān)施工方面的程序文件，并以此為依據(jù)編制施工方案，同時(shí)對(duì)班組進(jìn)行詳細(xì)的技術(shù)交底，并形成交底記錄。Learntheconstructionqualitymanagementrulesmadebyandproceduresaboutconstruction,thenprepareconstructionprogram,Atthesametimedetailtechnicalclarificationmeetingshallbeheldwith team,writtenrecordshallbemade.（4）WeldersmusthaveofqualificationthroughSite Constructiontoolsandequipmentsshallbegivenanintegritycheck,thentransportedtositeandbeputproperlyandsafely.Constructorshallgetsafetytraining,familiarwiththesiteThematerialstockyardonsiteshallfollowtheprinciple”threepathwaywithoneflatground”.Providesecondaryweldingmaterialstorehouses,whereequipmentssuchasovenarecomplete.Arctemtemustmeetthespecificationofdrawing;processequipmentsforinstallationshallbeaccuratefabricatedandconfirmedbyqualityArrangethedailyworkscheduleformeridiandomeroofaccordingtomainbodyconstructionschedule;meettotalprojectschedulefollowingtherulesofcarefulmanagementandcarefulconstruction.Recheckthemeasuredataoftopsteprovidedby,constructionshallbeperformedafterConstructionscheduleandManpowerAccordingtotherequirementofproject,work,practicalsiteconditionsandconstructionconditions,scheduleandsoon,determinetherequirednumberandpassinandouttime,detail arrangementasbelow: Riveters:XXX sincludingainspector sincludingawelder起重 Liftingworkers: sincludingaliftengineering Constructionprincipleand基準(zhǔn)水平面確定ConfirmationofbasehorizontalTheintersectionbetweenthemiddleneofgridroofandinnersurfaceofsisahorizontalcircle,takethecenterofhorizontalcircleasrightanglecoordinatesorigin,XZnepassingthecenterOiscalledasbasehorizontalne.Verticalcoordinatevalueofeachnodalpointinthisprogramisbasedonthishorizontalne.NodalpointandedgenodalAttheintersectjointofuppergridbaranddowngridbar,nametheintersectionbetweenrightangleturnlinelocatedoutsidesurfaceoftwoanglesteelasnodalpoint.基準(zhǔn)水平面上（0Therightanglelineofgridbaralongthemiddleneofdomeroofextendingtointersectwithinsidesurfaceofsiscalledasedgenodalpoint,alledgenodalpointslocateinthebasehorizontalne(verticalcoordinatevalueis0).No.ofnodalpointandedgenodalpointindicatedinthea)4.3Constructionprocedureas錐板組對(duì),Constructionpreparation→ programetcAssemble,adjustmentweldingoftaperAcceptanceforphysicaldimensionoftoptebeforeAcceptancetaperAssemblyforuppergridanddowngridMaterialMaterialsandattaentsusedforgridstructureshallhavequalitypass,whenevernotavailableorhaveanydoubtonthe,retestshallbeappliedonthesematerialandattaent,materialsshallbeusedonlyafteracceptance.Weldingmaterialshallhavequality,thequalityofelectrodeshallincludechemicalcompositionsandmechanicalpropertiesdepositedmetal,thequalityoflowhydrogenelectrodealsoincludesdiffusedhydrogencontentsofdepositedmetal,recheckweldingmaterialisnecessarywhenevernotavailableorhaveanydoubtontheMeridianGridstructure頂圈罐壁驗(yàn)收要求TopStesacceptanceTheleveltoleranceforthetopstesshallbemeasuredbeforeassemblyweldingappliedontapertes,requirementasfollow:（1）沿圓周每10m弧長上任意兩點(diǎn)的水平為2mm，整個(gè)圓周上任意兩點(diǎn)的水平Leveltoleranceofarbitrarytwopointsoneach10marclengthalongcircleis2mm,leveltoleranceofarbitrarytwopointsaroundtotalcircleis（2（40m）Radiustoleranceforarbitrarypointsontopsteforwithdiameter40meteris±19mm.錐板安裝要求Tapertesinstallation30±01的斜度；Supporttesshallbeinstalledbeforeassemblyoftaperte,whichshallbeputwitha30±01slopeandbeseriouslycontrolledthroughequallyspacedaroundcircumference.Beforeassemblingtheedgeannularbeam,drawanarclineontheinsidesurfaceoftapertewhichusedtoasabaselinetoconnectwithoutsidesurfaceofs,anddrawatapertepositionlineonsteoutsidesurfaceofsmustfollowthearclinetoensuretotheroundtoleranceofsduringinstallation.Thedistancebetweenbuttjointofedgeannularbeamandlongitudinalseamoftopsteshallnotlessthan200mm.Theallowablelookupangletoleranceofedgeannularbeamafterassemblyweldingshallbe0~+1°.Liftuptapertesonebyonepiece,putthemonthetopofsupporttes,uselocksettofixthejoints.Theroundtoleranceofsshallbecheckedusingstemteaftertheassemblyweldoftaperte.TheroundtolerancemustmeetthePreparationoffixinggridXZ25X2軸線方向固定，垂直方向用經(jīng)緯儀或線墜進(jìn)行找正，90°方向(Z支點(diǎn)的Y向坐標(biāo)為±3mm，X向及Z向坐標(biāo)為±15mm。Inordertoensurethearcheightoflowergridbarduringassembly,beforefixingthelowergridbar,takethenodeofaxisXandaxisZasacenter,setuptwenty-fiveverticalsymmetricsupportbarstemporarilywhichfixedatthedirectionofaxisX2,alignusingthliteorthreaddropballatverticaldirection,supportedbytwoslantingrodat90°(Zaxis)direction,usespotweldingtoconnectbottomtesundersupportrodswithbottomtes.CoordinatetolerancevalueofaxisYforabovepointis±3mm，CoordinatetolerancevalueofaxisXandaxisZis邊節(jié)點(diǎn)、及上、下網(wǎng)桿安裝AssemblyforedgenodalpointsanduppergridbarandlowergridbarAccordingtothegivenarclengthofeachedgenodalpoint,perpendicularlineshallbemadefromthes,theperpendicularlengthis500mm.LocatethehorizontalbaseneofaxisXandaxisZwithwaterleveldevise,crosswithequallydividedperpendicularline;thejointofcrosswillbetheintersectionpositionofconnector,thenfixconnectingmemberA,B,C,Dontheproperpositionfollowingserialnumberbywelding,andcheckthetwoconnectingpieceswhichpassthroughthecentertokeepthemthesame.拼接XAccordingtoweldingrequirements,splicethefirstlonggridbarinaxisXdirectionbywelding.X25YAssemblethefirstgridbarinXaxisdirectioninthemiddleoftwenty-fivesupportbars,YvalueofeachnodalpointshallbejustthevalueofY+DY,allowabletoleranceis±2mm,weldbothendofeachgirdbartosteatthepositionofbordernodalpointafterthemeasurementoftwenty-fivegridbarsareThesecondandthirdbarinXaxisdirectionshallbesymmetrywithZaxis,assemblytheminbothsides.ThenassemblethefirstlonggridbarinaxisZdirection,nodalpoint1shallmatchtogetherwithnodalpoint1oflonggridbarinaxisXdirection,successivenodalpointpositionmustbefixedbyspotweldattheconcurrentposition,bothendofgridbarsarealsofixedbyspotweldingwithedgenodalpointconnectingpieces,takeaxisXassymmetricalaxis,thenfixbothsidessymmetricallyusingthesameX、Z、Y+DYY+DY差±2mm，X、Z軸方向坐標(biāo)值±15mm。TheadjustmentandcalibrationforX,Z,Y+DYvalueofuppergridbarsandlowergridbarsshallstrictlyfollowtheY+DYvaluewhichspecifiedtechnicalrequirementsastoleranceis±2mm,coordinatetoleranceinaxisXandaxisZdirectionis±15mm.ThedmethodsshallbeprohibitedduringgridbarsCoordinatevalueofeachnodalpointseetable1-（8)安裝要領(lǐng)書）Inordertoassembleandfixeasily,installationguidebookprovidethearclengthbetweenadjacentnodalpoints.蒙皮板安裝Covertes6.4（5）點(diǎn)的要求；Thenodalpointscoordinatevalueofgridsstructurewhichhavebeenassembledshallbeinaccordancewiththerequirementofpoint5inclause6.4beforeassembleofcoverCoveringteisusedforsealandloaddelivering,socovertesmustbeleveltes.Covertesofroofshallbearrangedinherringbonepattern,laidoutalongthedirectionofaxisXandaxisZinforty-fivedegreedirection.Layoutcovertesbeginningfromthetopofroof,whichhasaforty-fivedegreewithmeridiangridstructure,thecovertesonthecentertopofroofshallbeputatthebottom.A366mmMaterialA36isusedforcoverteswiththickness6mm.Theoverlapwidthbetweenadjacentcovertesshallnotlessthan30mm.25mm。Concaveandconvextoleranceofcovertesafterweldingshallbemeasuredbytemtewithchordnotlessthan2m,theumconcavevalueforadjacentgridbarshallnotmorethan25mm.Holesareavoidedtobeopenedatthelocationofgridbarson錐板的焊接TapertesButtjointsfortapertesitselfshallbecompletefusion,completeweldingwithequalstrengthjoint,useweldingmaterialandprocesswhichmatchwithmaterialandthickness.TheweldbetweentaperteandsteshallbeequallysplitaroundthecircumferenceusingDCwelddevise,weldworkshallbedonesimultaneouslyinsamedirection,doublecontinuousfilletweldistakenbetweentheconnectionoftaperteandste,thelegheightoffilletshallbethethinnerofeachthickness.錐板焊接完畢，拆除支撐錐板支持板，打磨壁板內(nèi)、外焊疤與罐壁Removesupporttefortaperte,polishinsideandoutsideweldflashtilflushingwithsafterweldingoftapertes.3Butt-jointedseamsamongprefabricatedtapertesshallbecheckedasperthethirdclassseamspecifiedinGB50205-2001.三級(jí)焊縫外觀質(zhì)量標(biāo)準(zhǔn)未焊滿（≤0.2+0.04t，且≤2.0，100.0≤0.2+0.04t，且≤2.0，≤0.1t≤1.0，0.1t，且≤1.0，1000.01深≤0.2t長≤0.5t，且50.0≤0.4t，且≤3.02≥6注：表內(nèi)tOutlinequalitystandardofthethirdclassseamAllowableDefectThethirdNonfullweld（notmeetthedesign≤0.2+0.04t，and≤2.0，defectlength≤25.0per100.0mmseamShrinkatbase≤0.2+0.04t，and≤2.0，nolimitationfor≤0.1t,and≤1.0，nolimitationforVoltaicarcVeryfewvoltaicarcbruisetobeBadnessofGapdeepness0.1t，and≤1.0，≤1pointper1000.0seamSurfaceslagdeepness≤0.2tSurfacegas2gasholeisallowedwithDia.≤0.4tand≤3.0per50.0seamlength，，distancebetweentwoholes≥6*holeDia.note：tinthistableisthethinnerWeldingofgridbarsandedgenodalpointconnecting3mm。搭接處不得有尖角突起。Back-to-backlapjointshallbeusedonthesplitofonepieceofmeridiangridbar,theoverlaplengthshallnotlessthan280mm.Usecontinuousfullfilletweldattheendoftwolappedanglesteelsalongthelongerleg.Continuousweldingshallbeappliedontwoweldseamalongthelengthdirectionoflapjoints,thelegheightshallnotlessthan3mm.Sharpcornerisnotpermittedatthelapjoints.Theconnectionbetweenbothendofgridbarandbackingtes,backingtesandsteshallbecontinuousfullfilletweld.Theweldingbetweenuppergridbarsandlowergridbarsshallbestrictlyinaccordancewithrequirementwhichspecifiedinweldingtechnicalspecification,weldstartfromcentertoaround,removesupportbarsgraduallyduringwelding.8mm。上網(wǎng)桿及下網(wǎng)桿與邊節(jié)點(diǎn)的組焊如圖所示。Nodejunctionteshallclingtightlytothelongerleg,theendoftheconnectteshallwithstandbackingtesandtapertes,wherecontinuousfilletweldingshouldbeused,thelegheightis8mm.Assemblyweldingamonguppergridbars,lowergridbarsandbordernodalpointsseefig.蒙皮板的焊接CovertesLapjointsbetweencovertesonlyneedfullfilletweldingoutside,noneedweldforinside.4mm，內(nèi)側(cè)不Forlapjointbetweencircumferenceofcoverteandtaperteofannularbeam,continuousfilletweldshallbeusedaroundoutsidecircumferencecircle,thelegoffilletweldis4mm,insideweldisnotpermitted.Weldisnotpermittedbetweencovertesandgrid網(wǎng)殼頂強(qiáng)度和嚴(yán)密性試驗(yàn)strengthandtightnesstestforgridsStrength,stabilityandtightnesstestofgridsroofshallbecarriedoutalongwithwaterfillingtestof.Testpressuremustmeetthevaluewhichspecifiedintechnicalrequirementondrawing.MeasurementofqualityQualitymanagement field fieldprojectA、B、CSetuptheprojectqualitycontrolpointaccordingtoprojectcharacteristicsandtherequirementsofsupervisionandqualityinspectionorganization.Foreachcontrolpoint,divideintogradeA,B,C.A級(jí)，應(yīng)由現(xiàn)場項(xiàng)目管理組、現(xiàn)場監(jiān)理組、施工承包單位專業(yè)人員聯(lián)合檢查GradeA:checkunitedbyfieldprojectmanagementteam,fieldsupervisionteam,constructioncontractor.GradeB:checktogetherbyfieldsupervisionteam,constructioncontractorC級(jí)，應(yīng)由施工承包單位的質(zhì)量門進(jìn)行檢查GradeC:checkbyqualitydept.ofconstructionForeachgradecheck,inspectionshallbeperformedafterconstructionteamself-checkandacceptance.ForgradeA,B,inspectionshallbeperformedafteracceptanceofconstructioncontractorqualitydept.QualitycontrolpointofmeridiangridsroofSerialQualityControl1 Checkdrawingandotherdesign completeornot、coordinateanddimensionornot，designcompleteorA2Construction measurement，qualitycontrolpointsetup；constructionstandardspec、process、procedure；manpower、toolB3焊工資格證WelderWelderB4構(gòu)件Componentfactory forcomponentappearanceandphysicaldimension；fieldmaterialmarkmanagementB5 sPhysicalB6 beams,barsBSerialQualityControl7施工過程的技術(shù)資料、質(zhì)量評(píng)定資料Technical、qualityevaluationexamination AConstructionteammuststrictlyfollowtheprocedureaccordingtoworkingprocedurequalityrequirement,weldershallcomplywiththeweldingprocess,forbidtochangeit Duringconstruction,eachworkstepshallbeinspected,andafteracceptanceofqualityinspectiondepartment,thenextprocesscanbeallowedtostart,constructionteamandoperatorshallwritethequalityrecord,thesintime.Theteamleadershallrequirehisteammembertostrictlycomplywiththerequirementspecifiedinconstructionspecifications,constructionmeasurement,qualitystandardanddrawing.Constructionself-checkrecordshallbewrittenseriously,accuraybyguarderintime.Operatorshallsupervisetheteamtowritetherecordandcheckthedatawhetherisaccurate,trueornot,collectandsortoutthecompletionsintime.Technicalfilesofcompletion(1)構(gòu)件的出廠質(zhì)量合格FactoryqualityofcomponentPhysicaldimensioninspectionrecordoftopsAssemblyrecordsofannularbeamsandgridbarsofmeridiangridHSEHSEmeasurementofHSE方針及目標(biāo)TargetandofSafetyfirst,precautionismain;Workofentirestaff,unifiedadministration;Improvecircumstances,protecthealth;Scientificmanagement,continuousHSE：HSE 損故為零 環(huán)境事故為 火災(zāi)事故為 車輛事故為No,donotharm health,donotdestroyenvironments,achieveagoodHSEperformance.Deathiszero,destroyediszero,recordedisis

Environmentiszero,fireiszero,vehicleHSEHSEmanagement焊焊HSEfieldHSEHSEWelderteamWelderteamErectingteamHSEAllthetechnicalsinvolvedinconstructionshallstrictlycomplywiththe’sHSEmanagementspecification.SafetyHSESafetyeducation,safetyofpowerusage,safetyfireprotection,workingathighaltitude,lifting,constructionsatrainingseason,politeconstructiononsiteandvehicleusagemustbeinaccordancewiththerequirementofHSEstandard.Followingtechnicalrequirementmustbestressedtocomplywithaccordingtospecificengineeringcondition:1)當(dāng)遇有特殊情況危及安全時(shí)，施工人員必須立即停止用火，無條件聽從現(xiàn)場調(diào)度的Constructionmuststopfireandobeythearrangementofsitedispatchunconditionallywhenevermeetwithspecialconditionswhichmayendanger2)區(qū)域要做好醒目的警戒標(biāo)志StrikingcautionnoticesshallbemadeindangerFortools,puttouseafterconfirmation,constructionshavetherighttorefusetheunsafescaffoldaswellasunauthorizedwork.Constructionworkshallbecarriedoutfarawayfromtheelectricalwire,cableasfaraspossible.Pre-cuttingdownthepowerorreliablesafetymeasurementshallbetakenwhenconstructionworkhappensaroundhighpressureelectricityarea.Oxygenbottle,acetylenebottleshallbefarawayfromfire,can’tputtogetherinthesamebox,thedistanceshallbemorethan6m,andthedistancefromfireshallbe10mandmore.高空作業(yè)零散材料必須放在工具袋內(nèi)，以防掉落傷人；從高空往下扔工具物件Duringworkingathighaltitude,scatteredmaterialsmustbeputintotoolboxinordertoavoidthemfromdrop,throwingtoolsfromhighaltitudeisforbidden.Electrodebo