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ID:36358456
大小:4.78 MB
页数:67页
时间:2019-05-10
《富水砂卵石地层土压平衡盾构带压换刀技术研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西南交通大学硕士学位论文富水砂卵石地层土压平衡盾构带压换刀技术研究姓名:侯磊申请学位级别:硕士专业:桥梁与隧道工程指导教师:仇文革20090501西南交通大学硕士研究生学位论文第1
2、页Abstract111theconstructionofurbanundergroundrailway,shieldconstructionmethod,withitsmanyadvantages,hasbecomethemainmethodofsubwayconstruction.Shieldconstructionexperienceshowsthatcutting·toolweal
3、"ofshieldmachineiseasytobecomesevereW01TI,needingregularmaintenanceandreplacementoperation,SOchoosingeconomicandfeasiblewayforreplacingtoolisimperative.TakingChengdusubwayengineeringbackground,thisarticlestudythefeasibilityandtechnologyofreplacingcutting·toolinpressureofEPBshieldinwater
4、-richandpebblysandstratum.Thecontentsinthispaperenumeratedasfollows:1、ComparativeanalysisofreplacingtoolmodeAccordingtothedifferentwayofreplacingtoolwear,contrastingandanalyzingrelativemeritsoftheseways,thesuitablewayforreplacingtoolofshieldconstructioninwater-richandpebblysandstratumis
5、definited.2、Theprincipleandbasicresearchofreplacingcutting—toolwithpressureAccordingtothemechanismofshieldexcavation,replacingcutting-toolwithpressureisanalyzed.Todirectatthewater-richandpebblysandstratumofChengdu,usingthemethodofseparatingsoilandwater,empiricalformulasofthepressurevalu
6、eofreplacingcutting-toolwithpressureisdrew.3、keytechnologyofreplacingcutting·toolwithpressurekeytechnologyofreplacingcutting-toolwithpressuremainlyincluding:bentoniteproportioningandpreparation、controltechnologyofbuildingandmaintainingpressure、pressurevalueandparametersettingofshieldinr
7、eplacingtools、measureofpressureadjustinginspecialcircumstances,finallytheentiretechnicsprocessofreplacingtoolwithpressureisconcluded.4、Riskmanagementtechniqueofreplacingcutting-toolwithpressureTheapplicationofriskmanagementidea,riskassessmentandcountermeasureisresearchedforprocessofbuil
8、dingpressure,keepingpressure,replacingcutting—toolwithpressureandrecoveringtunnelingtechnology.Intheprocessofreplacing西南交通大学硕士研究生学位论文第1lI页cutting—toolwithpressure,thereexistssecurityriskandriskofhealth.Manysuccessfulexperienceofreplacingcutting—toolwithpressureshowsthat,replaci
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