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首页 smw工法三轴搅拌机桩的施工工艺(Construction technology of thre…

smw工法三轴搅拌机桩的施工工艺(Construction technology of three shaft mixer pile in SMW construction method).doc

smw工法三轴搅拌机桩的施工工艺(Construction t…

徐贵一
2018-08-23 0人阅读 举报 0 0 暂无简介

简介:本文档为《smw工法三轴搅拌机桩的施工工艺(Construction technology of three shaft mixer pile in SMW construction method)doc》,可适用于社会民生领域

smw工法三轴搅拌机桩的施工工艺(ConstructiontechnologyofthreeshaftmixerpileinSMWconstructionmethod)smw工法三轴搅拌机桩的施工工艺(ConstructiontechnologyofthreeshaftmixerpileinSMWconstructionmethod)SMWconstructionmethodreferstothecementsoildeepmixingpilewall,accordingtocertaintypeinsertedHsteel,becomeakindofstiffcompositeenclosurestructure,foreignalsoknownasTSPconstructionmethodThestructurehastheadvantagesofgoodimpermeability,largerigidity,simplestructure,simpleconstruction,shortconstructionperiodandnoenvironmentalpollutionAsatemporarysupport,thesteelcanberecycledandreused,andthecostislowThissupportingmethodisadoptedinsomesupportingprojectsPreparationandexcavationofguidedtrenchPilemachineinplaceMixingpileManufactureofHsectionsteelHsteelinsertSteeltransportationinplaceDerustingandbrushingantifrictionagentFirst,constructionpreparation,solvethescene"threelinksandoneleveling"",determinereasonableconstructionsequenceandsupportingmachinery,cementandothermaterialsandequipmentplacementAccordingtothecontrollineoftheinnersideoftheretainingwallofthefoundationpit,theguidinggrooveisexcavated,andthepositioningsteelofthemixingpileisplacedontheedgeofthetrenchtomarkthepositionofthestirringpileandthelocationofthesteelinsertedAccordingtothedimensionandsizeoftheinsertedsteel,thecorrespondingsteelpositioningguideframeandthesuspensioncomponenttopreventsinkingaremadeTwo,theconstructionofsoilmixingpile,comparedwiththeconventionalmixingpile,specialattentionshouldbepaidtothespacingandverticalityofthepileTheconstructionverticalityshouldbelessthan,soastoensurethesteelbartobeinsertedandpulledsmoothly,andtoensuretheantiseepageperformanceofthewallConstructiontechnologyofSMWconstructionmethod(threeshaftmixer)SMWconstructionmethodreferstothecementsoildeepmixingpilewall,accordingtocertaintypeinsertedHsteel,becomeakindofstiffcompositeenclosurestructure,foreignalsoknownasTSPconstructionmethodThestructurehastheadvantagesofgoodimpermeability,largerigidity,simplestructure,simpleconstruction,shortconstructionperiodandnoenvironmentalpollutionAsatemporarysupport,thesteelcanberecycledandreused,andthecostislowThissupportingmethodisadoptedinsomesupportingprojectsPreparationandexcavationofguidedtrenchPilemachineinplaceMixingpileManufactureofHsectionsteelHsteelinsertSteeltransportationinplaceDerustingandbrushingantifrictionagentFirst,constructionpreparation,solvethescene"threelinksandoneleveling"",determinereasonableconstructionsequenceandsupportingmachinery,cementandothermaterialsandequipmentplacementAccordingtothecontrollineoftheinnersideoftheretainingwallofthefoundationpit,theguidinggrooveisexcavated,andthepositioningsteelofthemixingpileisplacedontheedgeofthetrenchtomarkthepositionofthestirringpileandthelocationofthesteelinsertedAccordingtothedimensionandsizeoftheinsertedsteel,thecorrespondingsteelpositioningguideframeandthesuspensioncomponenttopreventsinkingaremadeTwo,theconstructionofsoilmixingpile,comparedwiththeconventionalmixingpile,specialattentionshouldbepaidtothespacingandverticalityofthepileTheconstructionverticalityshouldbelessthan,soastoensurethesteelbartobeinsertedandpulledsmoothly,andtoensuretheantiseepageperformanceofthewall,accordingtotherelevantrequirementsofthetestpile,cementslurrywatertodeterminetheactualratioofpileformingprocessandconstructionsteps,piletechnologyforensuringthestrengthofcementsoiltomeetthedesignandtypeofsteelisrelativelyeasytoinsertcementsoilmixing,cementsoilmixingpileconstructiontomaintainthelevelofpilemachinechassisandverticalcolumnguideframeShouldbecontrolledintherangeof~mminmixingandsinkingspeedandimprovethespeedof,threeshaftmixer,andmaintainuniformsettlementanduniformpromotion,whileavoidingthestirholenegativepressurecausedbythesurroundingsettlementTheconcreteselectionspeedshouldbedeterminedaccordingtothepileformingtechnology,cementslurrymixingratioandtheflowrateofthegroutingpump,andthemixingtimesormixingtimeshouldensurethequalityofthecementsoilmixingpileMixingcementslurrystrictlyaccordingtothedesignproportionofcementslurryandmixingmachineoperationregulations,andpouringintothestoragetankorstoragetankwithstirringdevicethroughthefilterscreentopreventsegregationFormorethanhours,themixedpulpingliquidshouldbereusedasthewastepulp,thepileandpilelaptimeshouldnotbegreaterthanhours,ifforsomereasonovertime,theconstructionmustslowdownthespeedofagitation,ensurethequalityoflap,theconstructionofmixingpilegeneratedinthesoilmustbecleanevendiggingyongAftercompletionofthedailywork,watershouldbeputintothestoragetankorstoragetank,thegroutingpumpshallbeopened,andtheremainingcementslurryinallthepipelinescanbecleanedThreeMakingofsectionsteel,partoftherentalsteelandthemanufacturersignedthesupplycontractistocleartherequirementsofthematerial,accesstothematerialacceptance,unqualifiedrequirementswillbereturnedtoensurethequalityofsteel,takingintoaccounttheextractionofsteel,thetophangingholestressisrelativelyconcentrated,sotheapproachtothetopoftheIbeamwillbeweldedtworeinforcedweb,thefrictionreducingagentisveryimportantwhenthesteelispulledoutRustremovalshouldbedoneonthesurfaceofthesteel,andantifrictionagentshouldbeappliedunderdrycondition,Theantifrictioncoatingisheatedtocompletelymelted,andthethicknessofthecoatingisuniformandthenbrushedontheIbeamsurfaceThethicknessoftheantifrictioncoatingiscontrolledovermmHandlingshouldbepreventedfromcollisionandstrongrubbingBeforetheliftingofthesteel,recheckwhethertheantifrictioncoatingiscomplete,onceitisfoundthatthecoatingcracking,peeling,shouldbepartoftherootoutandrebrushingThemixingpiletopmakingpurlin,priortosteelisolationwrappedinbrownpaper,inordertopile,theuseofIbeaminconstruction,dockingusingtheinternaldiamondpilemethodInordertoensurethesmoothandsmoothsurfaceofthesteel,itssurfaceevennessiscontrolledwithinperthousand,andholesshouldberetainedatthefourcornersofthediamondFourInsertandrecycleofsectionsteelThesteelshouldbeinsertedbeforetheinitialsettingofthecementsoil,thepositionshouldbecorrectedbeforetheinsertion,andtheguidedeviceshouldbesetuptoensurethattheverticalityislessthanDuringtheinsertionprocess,thesteelmustbeliftedandpressedasmuchaspossiblebygravityIfthepressuresinkcannotbeinplace,thenopenthevibrationsinkingtotheelevationThemethodofinsertingsteelrepeatedlyandlooseningthehookisstrictlyprohibitedIftheuseofVibratoryHammerSinkingConstruction,weshouldconsidertheimpactonthesurroundingenvironment,theinsertofthesteelmustadoptasolidpositioningguideframe,andusetwotheodolitestochecktheverticalityofthesteelinsertwhenthesteelisinsertedinplace,andthenusethehangingcomponenttocontrolthetopelevationofthesteelTheinsertedsectionsteelshouldbeconnectedtopreventtheinsertedsteeldisplacementduringtheconstructionofthenextgroupofmixingpilesAfterthesteelisinsertedintotheelevation,itishookedwithsteelbars,oneendisinthehangingholeofthesectionsteel,theotherendisweldedorhungontheLongmenrackacrossthegroove,andtherearendcanbedismantledinoneweek,sectionsteelrecyclingThesteelrecoveryshouldbecarriedoutaftertheconstructionoftheundergroundstructureofthemainbodyandbackfillingbetweenthebasementwallandthemixingwallInthedismantlingofsupportandsurroundingthem,shouldleavesometypesteelpurlinspacingorantislidingsupportmember,weldingandotherclean,andapplythetypesteelpulloutfrictionreducingagentWithhydraulicjacks,theclampingsteelisliftedtomakeitloose,thenthevibratoryhammerisused,andtheHsteelispulledoutbymeansofvibrationorcrawlercraneThemethodoffillingthegapwithedgepullingsteeledgeisadoptedFive,toensuretheverticalpilemeasuresIn,pavingwoodsleepertolevelingwhole,therailsleeperatthesamelevel,beforeopeningthehole,thehorizontalrulerisusedtoproofreadthemechanicalframe,soastoensuretheverticalityofthepiletomeettherequirementsUsetwotheodolitestoadjustthemixingshaftverticallyandhorizontallytoensuretheverticalaxisofthemixingshaftDuringtheconstructionprocess,theelevationaroundthemachineismeasuredrandomlytoensurethemachineisinthehorizontalstateconstructionAtthesametime,theverticalaxisofthemixingshaftisoftenremeasuredbythetheodoliteSix,toensurethatthesolidstrengthofuniformmeasures,groutingandslurrypipelineblockagearenotallowedinthegroutingstageIfthepileisbroken,itwillbedrilledcentimetersdownandthensprayed,theuseof"twospraytwostir"constructionprocess,thefirstshotcretecontrolin,secondtimestheamountofshotcretecontrolinstrictlyprohibitthepiletopleakagesprayphenomenon,toensurethestrengthofthepiletopcementsoilThemixerheadsinkstothedesignelevation,Turnonthemortarpump,pressthecementpastewhichhasbeenmixedintothefoundationsoil,andmixwiththeedgeofthemortarforaboutminutes,controlrepeatedstirring,liftingspeediswithinmetersmininordertoensurethatthedepthofreinforcementwithineachdeptharefullystirred,theconstructionintervalofadjacentpilescannotexceedhours,otherwise,shotcreteshouldbesprayedwithsomecementslurrytoensuretheoverlappingstrengthbetweenpiles,theprestirring,softsoilshouldbecompletelystirringchopped,inordertofacilitatethehomogeneousmixingwithcementslurry

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smw工法三轴搅拌机桩的施工工艺(Construction technology of three shaft mixer pile in SMW construction method)

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