隧道施工技术盾构法课件

隧道施工技术盾构法TunnelConstructionTechnologyShieldMethod盾构法目录TableofContentsshieldMethod盾构法施工简介1BriefIntroductiontoShieldMethod盾构法施工程序2ProceduresofConstructionwithShieldMethod盾构法施工特点3CharacteristicsofConstructionwithShieldMethod课程小结4Summary盾构法施工简介BriefIntroductiontoShieldMethod01盾构法ShieldMethod暗挖法施工中的一种全机械化施工方法。它是将盾构机械在地中推进，通过盾构外壳和管片支承四周围岩防止发生往隧道内的坍塌。Theshieldmethodisafullymechanizedundercuttingmethod.Forthismethod,theshieldmachinetunnelingmachineadvancesinstratum,anditsshieldshellandsegmentshelptosupportthesurroundingrocktopreventtunnelcollapse.盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod刀头Automaticsegmenterector刀头旋转器Cutterrotator管片自动拼装器Automaticsegmenterector实时回填注浆管Groutingpipeforreal-timebackfilling环形保持系统Ringretentionsystem控制室Controlroom液压装置Hydraulicdevice盾后第一间Firstchamberbehindtheshield管片起重机Segmentcrane管片堆放传送带Segmentstackingandconveyingbelt管片供应系统Segmentsupplysystem推进千斤顶Thrustjack微调千斤顶Jackforfineadjustment盾构法ShieldMethodInaddition,infrontoftheexcavationface,thesoilisexcavatedbyacuttingdevice,andtransportedbysoilremovalmachinery.Thejacksareusedforpressurizationandjackingintherear,andatthesametime,precastconcretesegmentsareassembled.Itisamechanizedconstructionmethodusedtoformatunnelstructure.同时在开挖面前方用切削装置进行土体开挖，通过出土机械运出洞外，靠千斤顶在后部加压顶进，并拼装预制混凝土管片，形成隧道结构的一种机械化施工方法。盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod2.隧道要有足够的埋深，覆土深度宜不小于6m且不小于盾构直径；3.相对匀质的地质条件；1.线位上允许建造用于盾构进出洞和出碴进料的工作井；2.Thetunnelshallhavesufficientburialdepth,andthedepthofcoveringsoilshallnotbelessthan6mandnotlessthantheTBMdiameter;1.Itisallowedtobuildaworkingshaftonthelineforshieldenteringandleavingthetunnel,andmuckingandfeeding;3.Theconstructionsiteshallhaverelativelyuniformgeologicalconditions;盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod

4.如果是单洞则要有足够的线间距，洞与洞及洞与其它建（构）筑物之间所夹土（岩）体加固处理的最小厚度为水平方向1.0m，竖直方向1.5m；

4.Ifitisasingle-tubetunnel,thereshallbesufficientdistancebetweencentersoftracks.Theminimumthicknessofthereinforcementtreatmentforsoilorrockmassbetweentunnelsandbetweentunnelsandotherbuildings(structures)shallbe1.0minthehorizontaldirectionand1.5mintheverticaldirection;盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod

5.从经济角度讲，连续的施工长度不小于300m。

5.Fromtheperspectiveofeconomicbenefits,thecontinuousconstructionlengthshallnotbelessthan300m.盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod

主要适用于浅埋及软土隧道施工，常用于城市地铁隧道、海底、江底、湖底隧道及小型管道。Itisapplicabletoshallow-buriedandsoft-soiltunnelconstruction,andalsocommonlyusedintheconstructionofurbanmetrotunnels,subsea,sub-river,under-laketunnelsandsmallpipelines.盾构法ShieldMethod盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod是一种用于软土隧道暗挖施工、具有金属外壳、壳内装有整机及辅助设备，在其掩护下进行土体开挖、土渣排运、推进和管片安装等作业，于一体，具有开挖切削土体、输送集机、电、液、传感、信息技术土渣、拼装隧道衬砌、量测导向纠偏等功能。盾构机ShieldMachineisusedforundergroundexcavationofsoft-soiltunnels.Ithasametalshell,inwhichthecompletemachineandauxiliaryequipmentareinstalled.Undercoverofthemetalshell,soilexcavation,muckingandtransportation,advancing,segmentinstallation,andotheroperationsarecarriedout.TheShieldmachineintegratesmechanical,electrical,hydraulic,sensorandinformationtechnologies,andhasthefunctionsofsoilmassexcavationandcutting,mucktransportation,tunnelliningassembly,guidanceanddeviationcorrectionformeasurement,etc.StructuralProfileofshieldmachine1.Cutterheadpanel2.Cutterhead3.Excavationchamber4.Mainbearingshaft5.Thrustcylinder6.Screwconveyor7.Segmenterector8.Segment9.Segmentconveyor盾构法盾构法施工简介ShieldMethodBriefIntroductiontoShieldMethod盾构法施工程序ProceduresofConstructionwithShieldMethod02人员准备Personnelpreparation测量工作Surveywork施工准备ConstructionPreparati机械Machinery材料Materials人工法技术Constructionmethodandtechnology施工环境Constructionenvironment盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod工作井现场图片SitePictureoftheWorkingShaft第二步：建造盾构工作井Step2:Constructionofshieldmachineworkingshaft工作井断面图ProfileoftheWorkingShaft盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod①组装始发台、托架①Erectlaunchingplatformandbrackets②组装台车、桥架②Assemblejumbosandthecabletray第三步：盾构掘进机安装Step3:AssemblyofshieldmachineHoistingofshieldmachinesupportframeLaunchingplatformofshieldmachinesupportframe#1jumbo#2jumbo#3jumbo#4jumbo#5jumbo盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod③吊装螺旋输送机③Hoistthescrewconveyor④吊装中盾④Hoistthemiddleshield盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第三步：盾构掘进机安装Step3:Assemblyofshieldmachine⑤组装前盾与中盾⑤Assemblethefrontshieldandmiddleshield盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第三步：盾构掘进机安装Step3:Assemblyofshieldmachine⑥组装刀盘⑥Assemblethecutterhead盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第三步：盾构掘进机安装Step3:Assemblyofshieldmachine⑦盾尾安装⑦Assemblethetailshield盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第三步：盾构掘进机安装Step3:Assemblyofshieldmachine注浆加固Groutingreinforcement冷冻法加固Reinforcementbyfreezingmethod第四步：进洞口土体加固Step4:Reinforcementofthesoilmassattheportal盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第五步：盾构连续掘进施工Step5:ContinuousshieldmachineTunnelingConstruction掘削、推进①①Excavationandcutting,andadvancing盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod出土②②Transportationofexcavatedsoil混合搅拌叶片Mixingandstirringblade造泥土室Earthmakingchamber切削器Cutter造泥材料注入口Mud-makingmaterialinjectionport螺旋输送机Screwconveyor泥土Earth土压力盒Earthpressurecell造泥材料注入管道Mud-makingmaterialinjectionpipeline泥土压Earthpressure静止土压Earthpressureatrest盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第五步：盾构连续掘进施工Step5:ContinuousshieldmachineTunnelingConstruction管片拼装③③Segmentassembly盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第五步：盾构连续掘进施工Step5:ContinuousshieldmachineTunnelingConstruction同步注浆与二次注浆④④SynchronousgroutingandsecondarygroutingTailshieldsealTailshieldGroutingpipeGreasepipeTailbrushTailshieldchamberGroutingSegment盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod第五步：盾构连续掘进施工Step5:ContinuousshieldmachineTunnelingConstruction第六步：盾构进入接收井运出地面Step6:Theshieldmachineentersthereceivingshaftandistransportedtotheground.盾构法盾构法施工程序ShieldMethodProceduresofConstructionwithShieldMethod盾构法施工特点CharacteristicsofConstructionwithShieldMethod03盾构法施工特点CharacteristicsofConstructionwithShieldMethod（1）盾构机械化程度高，对地层适应性好。(1)Theshieldmachinehasahighdegreeofmechanizationandgoodadaptabilitytodifferentstratumconditions.（2）能够承受围岩压力，施工安全。(2)Itcanbearthepressureofsurroundingrock,soconstructionsafetyisensured.（3）适用各种地层。(3)Itisapplicabletoconstructioninvariousstrata.优点Advantages盾构法盾构法施工特点ShieldMethodCharacteristicsofConstructionwithShieldMethod盾构法施工特点CharacteristicsofConstructionwithShieldMethod（4）地面作业少，隐蔽性好，噪声、震动小。(4)Itrequireslessgroundoperation,withgoodconcealment,lownoiseandvibration.（5）施工费用和技术不受覆土深度影响，可以深埋施工。(5)Theconstructioncostsandtechnologyarenotaffectedbythedepthofcoveringsoil,andshieldmachinecanbeusedfordeep-buriedconstruction;优点Advantages盾构法盾构法施工特点ShieldMethodCharacteristicsofConstructionwithShieldMethod（6）穿越河底或海底，不影响通航，也不受气候影响。(6)Shieldmachinecancrossthebottomoftheriverorseawithoutaffectingnavigation,anditisnotaffectedbytheclimate.（7）穿越地面建筑群和地下管线时，对周围环境影响小。(7)Whentheshieldmachinepassesunderneathgroundbuildingsandcrossesundergroundpipelines,ithaslittleimpactonthesurroundingenvironment.盾构法施工特点CharacteristicsofConstructionwithShieldMethod优点Advantages盾构法盾构法施工特点ShieldMethodCharacteristicsofConstructionwithShieldMethod（8）主要工序循环易于管理，施工人员少。(8)It'sconvenienttomanagethemainprocesscycle,andfewerconstructionpersonnelarerequiredtobeon-site.（9）工程造价低。(9)Theprojectcostislow.（10）施工工期短。(10)Theconstructionperiodisshort.盾构法施工特点CharacteristicsofConstructionwithShieldMethod优点Advantages盾构法盾构法施工特点ShieldMethodCharacteristicsofConstructionwithShieldMethod缺点Disadvantages（1）断面尺寸多变的区段适应能力差。(1)Theshieldmachinehaspooradaptabilitytosectionswithvariablesectionsizes.（2）新型盾构购置费昂贵，对施工区段短的工程不太经济。(2)Thenew-typeshieldmachineisexpensive.Fromtheperspectiveofeconomicbenefits,thepurchasecostishighforprojectswithshortconstructionsections.（3）工人的工作环境差，工作危险系数高。(3)Theworkingenvironmentispoor,andworkersworkwithhighrisks.盾构法施工特点CharacteristicsofConstructionwithShieldMethod盾构法盾构法施工特点ShieldMethodCharacteristicsofConstructionwithShieldMethod课程小结Summary04(1)盾构始发工作开始时，严格按批准的始发方案进行施工，做到整个工作处于受控状态。盾构法施工安全注意事项SafetyPrecautionsforConstructionwithShieldMethod(2)洞门凿除后，盾构机应加快靠上洞门。(1)Whenthelaunchingworkoftheshieldmachinestarts,theconstructionshallbecarriedoutinstrictaccordancewiththeapprovedlaunchingschemetoensurethatthewholeprocessisundercontrol.(2) Afterthetunnelportalischiseledaway,theshieldmachineshallbeleanedagainstthetunnelportalassoonaspossible.盾构法课程小结ShieldMethodSummary(3)掘进加固土体时，应以磨为主，使加固土得到充分切削。(4)掘进加固土体时，可适当开超挖刀超挖。(3) Whentunnelingiscarriedoutinthereinforcedsoil,grindingshallbethemainmethodtofullycutthereinforcedsoil.(4) Whentunnelingiscarriedoutinthereinforcedsoil,theovercuttercanbeproperlyusedforo