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1、TheapplicationofTrenchlesstechnologyinengineeringAbstract:Inrecentyears,trenchlesstechnologywasdevelopedrapidlyinourcountry.Becauseitdamagedenvironmentalsmall,locateaccurate,costlow,didn’taffecttrafficanditsconstructionperiodisshort.Soitwasappliedmoreandmoreintheundergroundengineering(suchasurb
2、anundergroundpipelineandthesubway).ThisarticleintroducetheExamplesofapplicationofpipejackingmethod(thecommonmethodsoftrenchlesstechnology)inurbanundergroundpipelineandsubway,andalsodescribestheprospectandtheexistingproblemsoftrenchlesstechnology.Keywords:Trenchlesstechnology;pipejackingmethod0l
3、eadsaidTrenchlesstechnologyisreferstotheuseofhorizontaldirectionaldrillingtechnicalmeansofthegeotechnicaldig,ongroundnotexcavationcircumstanceslaying,replacementandrepairallsortsofundergroundpipelineconstructionofnewtechnology.Becausetrenchlesstechnologyhaslayingpipelinespositionprecision,const
4、ructionperiodisshort,theenvironmentaldamagethesmall,donotaffecttrafficandlowcostadvantages,non-excavationtechnologyhasinurbanundergroundpipeline,subwaylinesandotherengineeringhasbeenwidelyused.Trenchlessconstructionequipmentismainlycomposedofthefollowingseveralparts:1)guidancesystem:usedindrill
5、ingprocesstothedrillbitlocalizationtodeterminetheorientationAngleanddrilling.Bytransmittersandreceivers,controller,remotemonitor,powersupplyetc.2)host:bytheengine,hydraulicsystem,mudpump,dynamicaxis,pipeandloadingsystemsetc.3)drillbit,backbyexpandinghead,pipeetc.4)mudmixingsystem:canincreasethe
6、drilllubrication,lowerdrillingresistanceanddrillworkingtemperature.1inthepipelinetrenchlesstechnologyprojectandtheapplication1.1projectsummarySet1650mmsewagepipediametersforengineering,pipejackingpipeusingFtube,steelmouthinterface,bearingⅢleveltube.D1650844.1meters,lengthofpipejackingslopei=0.6
7、‰.Determinationof1.2pipesAccordingtotheengineeringdrawingsrequest,thisprojectthesewagepipepipejackingbyuseofpipesfor:usingFtube,steelmouthinterface,bearingⅢleveltube.130pipejackingconstructionplan,technologyandqualitycontrolmeasur
