2023学年完整公开课版Constructional Elements of Shield Machine

ENGLISHFORSHIELDCONSTRACTIONUnitFour——ConstructionalelementsofShieldMachine1.Knowwelltheconstructionalelementsof

shieldmachine;

掌握盾构机的组成

2.Graspthefunctionofeachpartofshieldmachine！

理解盾构机各部分的功能objectives（目的）ContentsTask2Task1Task3VocabularyHaveSomeFunConstructionalpartsofShieldMachine专业词汇学习轻松一下盾构机的组成Seite4Task1：Vocabularyconstructionalelement结构元件mostlyadv.主要地，通常地softsoilstratum软土地层compositestratum复合地层arrangementn.布置，安排inprinciple原则上，大体上sectionn.块，段，部分severalpron.几个，数个decametern.十米evenadv.甚至，还cuttingwheel刀盘driven.驱动thrustcylindern.推进油缸erectorn.管片拼装机submergewall水下隔墙pressurebulkhead压力隔板feedline进料管returnline回流管，出渣管Seite5Task1：Vocabularypersonnellock人闸screenn.滤网，滤板alikeadj.相似的，相同的aspectn.方面，外观，方向hardrockstratum硬岩地层cuttingtool切削工具quiteadv.很，相当componentn.零件，组成要素locatev.位于，坐落于improven.改善，提高flowability流动性，流动能力separatev.分隔，隔开pressurizedadj.带压力的atmosphericadj.大气的drivemotor驱动马达chosenadj.选定的advancingn.推进，前进pushout推出，伸出Seite6Task1：Vocabularythrustforce反推力headinglength掘进长度，掘进距离retractv.缩回，撤退，撤回correspondingadj.对应的，相应的positionn.位置dependonsth取决于…….ultimatelyadv.最后地，最终地launchshaft始发井backupsystem后配套系统sewagepipe污水管ventilationsystem通风系统controlcabin主控室greasesystem油脂系统back-fillgrouting壁后注浆auxiliaryadj.辅助的，附加的Task2:ConstructionalpartsofShieldMachineShieldmachineisakindofmechanicalequipmentweusetoexcavatetunnelsunderground.Andmostlyinsoftsoilstratumandcompositestratum.ThearrangementofthemostimportantconstructionalelementsofashieldisshowninFigure4-1andFigure4-2.Inprinciple,ashieldmachineisdividedintothreesections:frontshield,middleshieldandshieldtailortailskin.Andusually,itstotallengthwouldbeseveraldecametersorevenmorethanahundredmeters.softsoilstratum软土地层compositestratum复合地层arrangement安排，布置constructionalelement结构元件Inprinciple原则上讲，一般来说totallength总长，全长decameter十米Task2:ConstructionalpartsofShieldMachineShieldmachineisakindofmechanicalequipmentweusetoexcavatetunnelsunderground.Andmostlyinsoftsoilstratumandcompositestratum.盾构机是一种机械设备，我们用它在地下开挖隧道，大多数情况下，是用在软土地层和复合地层中。Task2:ConstructionalpartsofShieldMachinecompositestratum复合地层

softsoilstratum软土地层Task2:ConstructionalpartsofShieldMachineInprinciple,ashieldmachineisdividedintothreesections:frontshield,middleshieldandshieldtailortailskin.固定短语：bedividedinto被分为....大致上，盾构机被分为3部分：前盾，中盾和盾尾。Task2:ConstructionalpartsofShieldMachine练习：固定短语：bedividedinto被分为....盾构机分为3种类型：敞开式盾构机，半敞开式盾构机和闭胸式盾构机。Shieldmachinescanbedividedintothreetypes:theopentypeshield,thepartiallyclosedtypeshieldandtheclosedtypeshield.Task2:ConstructionalpartsofShieldMachineFigure4-1Constructionalelementsofanearthpressurebalanceshield

管片拼装机

驱动

刀盘

推进油缸螺旋输送机

螺旋输送机驱动

传送皮带Task2:ConstructionalpartsofShieldMachineFigure4-1ConstructionalelementsofanearthpressurebalanceshieldCuttingwheel

刀盘Drive驱动Thrustcylinder

推进油缸Screwconveyor螺旋输送机Erector

管片拼装机Conveyordrive螺旋输送机驱动Conveyorbelt

传送皮带Beltconveyor

皮带输送机Task2:ConstructionalpartsofShieldMachineFigure4-2Constructionalelementsofaslurryshield

隔水墙盾壳

人闸，人仓

压力隔板

盾尾密封

岩石破碎机

格栅

进泥管

排泥管Task2:ConstructionalpartsofShieldMachineFigure4-2ConstructionalelementsofaslurryshieldSubmergedwall

隔水墙Personnellock人闸，人仓Pressurebulkhead压力隔板Shieldtailseal盾尾密封Stonecrusher岩石破碎机Screen筛网，滤网Feedline进泥管Returnline排泥管Submergedwall

隔水墙Pressurebulkhead压力隔板Itiscalledtailskin.insideit,thereisatailsealsystemthatincludessealingbrushandsealinggrease.Stonecrusher岩石破碎机Task2:ConstructionalpartsofShieldMachineTunnelboringmachineandshieldmachinearealikeinmanyaspects,butTBMisusuallyusedinhardrockstratum,andthecuttingtoolsofitarequitedifferentfromshieldmachine.Thecutterheadisanimportantconstructionalelementoffrontshield,itissetinthemostfrontofshieldmachine.Themainfunctionofcutterheadistoexcavatetunnelface,supporttunnelfaceandmixexcavatedsoilinthechambertoimproveitsfluidity.alikeadj.相似的，相同的aspectn.方面，相位hardrockstratum硬岩地层cuttingtool切削工具bedifferentfrom与……不同constructionalelement结构元件besetin安装在……，设置于…..mixv.搅拌，混合chambern.腔，室（此处指土仓）improvev.提高，改善，增进fluidityn.流动性Task2:ConstructionalpartsofShieldMachineAfurtherpartofthefrontshieldisthepressurebulkhead,whichseparatesthepressurizedexcavationchamberfromrestofthetunnelunderatmosphericpressure.Inthecenterofthefrontshieldarethedrivemotorsforthechosen

excavationdevice,withit,cutterheadcanrotateundergroundandexcavatetunnelface.pressurebulkhead压力舱隔板separatev.使分开，使隔开pressurizedexcavationchamber带压泥土舱therestof剩下的，余下的atmosphericpressure大气压力drivemotor驱动马达，传动马达chosenadj.选定的，精选的excavationdevice开挖设备Task2:ConstructionalpartsofShieldMachineAsshieldadvancing,thehydrauliccylindersarepushedoutagainsttheliningtogetathrustforcefromsegmentssothattheshieldmachinecanexcavatetunnelface.Andwhentheheadinglengthisaboutasegmentwidth,shieldmachinestopsandthehydrauliccylindersretractseparately,inthemeantime,segmentsareassembledinthecorrespondingpositionsbyerector.Thehydrauliccylindersaresetinthemiddleshield,andusually,thereare22ofthemormoredependsonthetypeandsizeofshieldmachine.pushout推出，拉出；against靠，倚，针对thrustforce反推力；headinglength掘进长度retractv.回退，撤回；separatelyadv.分开地Inthemeantime同时；assemblev.安装，组装correspondingposition对应位置erectorn.管片拼装机；dependon取决于Task2:ConstructionalpartsofShieldMachineAndthereisaunitcalledscrewconveyor,thefrontendofitisinthechamber,anditstailendissetabovethebeltconveyor.Withtherotationofscrewconveyor,themuckexcavateddownbycutterheadcanbedirectlytransportedoutofthechamber,thenconveyedtothemuckcar,andultimately

takenoutbythegantrycranelocatedabovethelaunchshaft.unitn.部件；screwconveyor螺旋输送机frontend前端；tailend末端，尾端above在….之上；beltconveyor皮带机muckcar渣土车；ultimately最终，最后takeout取出，运出；gantrycrane龙门吊launchshaft始发井Task2:ConstructionalpartsofShieldMachineTheback-upsystemofshieldmachinemainlyconsistsofgantries(usually4to6ofthemandnumberedasgantryNo.1togantryNo.6),pipes(includingsewagepipe,waterpipeandsoon),beltconveyor,ventilationsystemandsoon.Andthecontrolsystemsarelocatedinthispartofashieldmachine,includingcontrolcabin,PLCsystem,greasesystem,back-fillgroutingsystemandotherauxiliaryequipment.back-upsystem后配套系统gantry台车，托车；numberedas用…编号sewagepipe污水管；ventilationsystem通风系统；controlsystem控制系统；controlcabin主控室；PLCsystem

PLC系统；greasesystem油脂系统；backfillgroutingsystem壁后注浆系统；auxiliaryequipment辅助设备Themainfunctionofcutterheadistoexcavatetunnelface,supporttunnelfaceandmixexcavatedsoilinthechambertoimproveitsfluidity.盾构机的主要功能是：切削掌子面，支护掌子面以及搅拌在土舱内渣土，以改善其流动性。1.cutterhead（刀盘）固定短语Thefunctionof..............的功能是......例句：电脑的功能是上网。Thefunctionofcomputeristosurftheinternet.2.hydrauliccylinders（推进油缸）Thehydrauliccylindersarepushedoutagainsttheliningtogetathrustforcesothattheshieldmachinecanadvancealongtunnelaxis.推进油缸伸出来顶在衬砌上，以此获得推力，这样盾构机就可以沿着隧道轴线前进了。pushout推出，拉出；against靠，倚，针对thrustforce反推力3.screwconveyor（螺旋输送机）3.screwconveyor（螺旋输送机）

Withtherotationofscrewconveyor,themuckexcavateddownbycutterheadcanbedirectlytransportedoutofthechamber,thenconveyedtothemuckcarbythebeltconveyor,andultimately

takenoutbythegantrycranelocatedabovethelaunchshaft.随着螺旋输送机的旋转，刀盘切削下来的渣土直接被运出土舱，然后通过皮带机运到渣土车上，最终，通过在竖井上方的龙门吊运出去。

4.thebackupsystem（后配套系统）

Theback-upsystemmainlyconsis