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首页 cfg长螺旋钻机的技术工法实践(Technical practice of CFG long a…

cfg长螺旋钻机的技术工法实践(Technical practice of CFG long auger rig).doc

cfg长螺旋钻机的技术工法实践(Technical pract…

xia伟明
2019-01-08 0人阅读 举报 0 0 0 暂无简介

简介:本文档为《cfg长螺旋钻机的技术工法实践(Technical practice of CFG long auger rig)doc》,可适用于社会民生领域

cfg长螺旋钻机的技术工法实践(TechnicalpracticeofCFGlongaugerrig)cfg长螺旋钻机的技术工法实践(TechnicalpracticeofCFGlongaugerrig)TechnicalpracticeofCFGlongaugerrig(a)geologicalsurveystatus:basalbearingtodustsandlayer(someclayeysiltandsiltyclaylayer),bearingcapacityofthefoundationvalueiskpa(two)CFG:CFGpile(pilepredrillingpressuregroutingcementpile)compositefoundationfortheresearchesinrecentyearsthatusesanewfoundationtreatmentscheme,thismethodissimpleandfast,thequalityofconstructioniseasytocontrolTheuseofthistechniqueinaprojectconsideredsuitableandcreatedforthefirsttimeinaprojectwherethetotalheightexceedsmissatisfactoryThesizeofaproject,aprojectabouttotalconstructionareaofaboutthousandm,thefourluxuryapartmenttowerrelatestoforeigncomponents,which#hasstartedtostartbuildingtheend,theimplementationof#buildingconstruction,building#,totalconstructionareaofsizemm,threelayerunderground,onthegroundlayerThefoundationofthemainbuildingisaboxfoundation,andthemainstructureisfullcastinplaceshearwallstructure#buildingatotalheightofm,thedefaultequaltocompletetheelevationofm,m,m,basalelevationism,theotherisequaltotheelevationofm,mandmcompletelyTwo,CFGAofthemainarchpilepresetthingsthefinalsettlementislessthanorequaltommBislessthanorequaltothetotalheightofthelargestarchoverperthousandtheantifloatingproblemCdoesnotconsidertheproblemofbasementFormorethankPaDfoundationbearingcapacity()HenanSanlimechanicalparameters:pileCFGpilepresetnumberuniformrootpilelengthmuniformpilediameterofmmcementgradeCstandardvalueofbearingcapacityofsinglepilekNpilespacingof*M*M*Mmmthickgravelcushioncushion(two)bearingcapacityofCFGpilecompositefoundationwithsimplecalculation:thesizeofplaneorsurfaceofthecompositefoundationrangeforbearingcapacityofcompositefoundationm:*kPa(kPa>=presetthebearingcapacityofFoundation),withthedesignrequirementsoffoundationbearingcapacityThree,startprocess(a)tostart:mainfacilitiestools:longspiraldrill(kW*)mixersslumpmeasuringcylinderblockproductionmodelsetsofdistributionboxtheodoliteslevelconcretepumpsmaterial:#ordinaryportlandcement:Cementgravel:diametermmfinesand:sand,mudcontentislessthanonehundredpercentflyashlaborpreparation:DirectorofpeoplestartedofpeopleresponsibleforTechnicalInspectorpeopleoperatingdrillingmachinedrillingmachinedrillingmachinecommandrecordofpeoplepeoplepeopleoperatingmixerpresenceconditions()theendoftrenchexcavation,reservedsoilthickness(mm),andhandlehalfwayupinspectionrecords()thegeneralcontractorwilldoagoodjobofSurveyingandexplainingthematerialsfortheCFGpilestartingunits(coveringfoundationelevation,curbaxisnet,etc)()CFGpilestartpositionsofthereconnaissanceunitsoftrenchtroughbottomelevationoftheimplementationoftheretest,accordingtothecontrolaxisofgeneralcontractorsupplyoutofaxiscontrolpoint(two):startprocess:thepileposition,mixingcement,pointlongspiraldrillintoholes,positioning,groutingcement,edgetoimprovedrilledgegroutingcement,pile,pilebodymaintenanceandinspection,cleaninganddeterminationofsoilbetweenpiles,pileheadforpavinggravelcushionpileposition:inaccordancewiththepilespacing,thenumberandthefoundationtreatmentoffigurepreset,fromaxiscontrolpointhassettheleadleftoutofthepilesitesofeachpile,limeandidentifiedbythesupervisioninspectionlinestandardprocedureconcretemixing:accordingtothedesignofthemixingratio,aboutcement:Sand:Gravel:water:=::::(flyash),participateingravel,sand,sand,watermixing,aboutSThemeasuredslumpofthecementis~mmdrillinganddrillingmachineinplace:longspiraldrillindrillingmachineleveldebuggingandfixed,specialinvestigationwilldrilltipatpilecorepositioningspiraldrillingmachine,verticaldrillingmachineadjustpositionsonthebasisofthedrillingframea,ensureleadstraightnessdeviationisnotgreaterthanHonehundredpercentAfterallthedebuggingisinplace,proceedtodrillholes,premarkdepthonthedrillingrack,usedepthmarktocontrolthedepthofthehole,andjudgewhethertoenterthepebblelayerbythedigitalammeterIntheconstructionprocess,thatusesdoublecontrolstandardcontrolholedepth,satisfactoryworkpilelengthislargerthanm,Toguaranteethepileintothecobblelayerislargerthanmm,somepebblesthinlayerofpebblesintotheground,controlovermlayerIntheplaneorsurfacethesizeofthecommencement,launchedthefirstpileofoffice,shotpiles,thusobtainedpilecannotbelessvariable(liftingspeed,cementinjectionrateandinjectionquantity),identifiedthepiledowntheorder:symmetry,interval,obliquepickthenextrowplay,fromoneendtopressdowntheorderprohibitingasetGroutingcementpilepipe,pull:longspiraldrilltodrillholesinthepresetdepthandotherGuanmancement,toimprovethedrillpipe,groutingcementsidepumpingelementcement(C),whilepullingthetubeSetupspecialcommandandcoordinatedrillingmachineoperatorandcementpumpoperatortoensurethepumpingofcementandimprovethematchingofthedrillpipe,soastoensurethequalityofthepileInthenormalcircumstances,improvethespeedofdrillingmachineislessthanorequaltommin,inthesandaquiferintheappropriateslowdrillingspeed,topreventtheflowofsandintheholecollapse,thephenomenonofbrokenpileTheefficiencyoftheliftingdrillisconsistentwiththepumpingefficiencyofthemixture,andthesurfaceheightofthecementinthedrillholeisensuredtobeslightlyhigherthanthebottomoutletofthedrillpipeUntilthepressurefillstheground,thegroundiscutafterthepile,thatusesvibrationtovibrationagain,vibratingdepthmorethanmThecementconveyingcapacitycontrolofpiletopandofficeflush,pileheadlaitancethicknessislessthanmmEnsurethatthereisnogroutatthetopofthepresetpiletoptestanddetermination:afterthecompletionoftheCFGpile,thepilestrengthreachedthepresetvalue,thetestunitshallbeselectedandtestedThestaticloadtestofpiletest::bydeterminationofthepresenceofanytalentallunitsselectedpilesstaticloadtrytoapproach:thinkappropriateanduseslowloadingtomaintainloadmethod,confirmthesinglepileandsoilbetweenpilesandthecompositefoundationofthestandardvalueofbearingcapacityTrytoloadthedeviceasappropriateandusethepressureplatformcounterforcedeviceHowever,themaximumloadmeasuredbypiletestisaddedtokNthemaximumloadbetweenthepilesisaddedtokpaTheconcretestepsofsinglepiletestareasfollows:trytoloadtheOctoberstlevel,eachonelevelloadQ(kN),beforeandafterloadinggaugeplatesettlingtime,min,min,min,thenreadthenotesofafirm,standardsforeachhoursettlementislessthanmmSoiltestingstepsareasfollows:trytoloadisdividedintotenstages,eachonelevelloadQ(kPa),beforeandafterloadinggaugeplatesettlingtime,min,min,min,thenreadthenotesofafirm,standardsforeachhoursettlementislessthanmmTheformulaandsimulationmethodareusedtocalculatethebearingcapacity,testvalueandvariantmodulusofcompositefoundationTheintegrityofpilepiledynamictest:unit:Determinationofpilesbythepresenceofarbitraryselectionofprofessionalinspection(onehundredpercent)forpileintegritytestingInspectionmethod:themethodissuitablefortestingtheintegrityofcementinpilebodybymeansofreflectedwavemethodaccordingtothefinaltestresults,theintegrityofthepileisdividedintofourcategories:A,B,CandDThisprojectaclassapile,Bclasspile,withoutC,Dpilethoroughlycleanthesoilbetweenthepilesandthepilehead:()teststandard,artificialclearedawayreservedmmthicksoillayer()thatusessteelandpneumaticpicktoolchiselingpileheadtopresetelevationreserved()cutpilehead,steelstandardsetting,strictlyverticalchiselpilehead,topreventthedamageofpilequality()slope(sumpandotherslope),accordingtotheactualslopeoffthereservedpilehead()thechiselingpilehead,smoothremovalasearlyaspossibleinthesecurityfieldplanenessdeviationlessthanmmgravelcushionconstruction:()afterfoursquareinspectiontanksmeetthestandard,thicksandmattressbeddingshallbelaid,andthegravelratioshallbesand:crushedstone=:(sizeratio)()thecushionpavingrange:bottomcushionouteredgemm()firstvirtualpavingwithgoodsandstoneaboutmm,withflatvibratorvibration~times,vibrationafterthethicknessofmmTryfour,materials:cementqualitycontrol:inthesamecementfactory,thesamebrand,strength,withtheappearanceofeachnumberislessthanorequaltotforabatchacceptancesand:thesameplace,thesamesizelessthantperoneacceptancebatchstones:thesameorigin,thesamespecificationsaspertabatchacceptanceflyash:tosupplythesamekindofwonlevellessthantforabatchacceptancecement:everyoffice,everydaymorethanm,oneacceptancebatch,notlessthanonesamplinggroup(three)thenumberofnotlessthanofonehundredpercentattemptstowitnessTheslumptest:eachteamofficenotlessthantwotimes,andrecordInaccordancewiththerequirementsofthespecification(GB),cementstrengthcountingshallbecarriedoutqualitystandards:intheconstructionprocess,dedicatedtoKongShen,pilediameter,verticaldegree(hole),deviationofpileposition,proportionofrawmaterials,improvethespeed,pilelengthandpilediametervariableforceinvestigation,andfillintheCFGpilequalityinspectionrecordfortheindicatorsareinlinewiththepresetsecurityandspecificationrequestAllowdeviation:pileverticaldegreeerror:lessthanofthelengthofpilepilediameter:onehundredpercenterror=mmpiledeviation:thepilediameterislessthanorequaltoFive,thesettlementofstationbytheBeijingMunicipalMeteorologicalResearchInstituteisresponsibleforthemeasurementofdefaultsettlementprojectofthebaseoftheconstructionoftheburiedsettlementstationstartpointbasementstructureconstructionfinishedthelayer(thebasementof)todesignate,backtimesamonth,sixmonthsafterthecompletionofAGoodweatherrecordsofsettlement

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