隧道施工任務(wù)二襯砌施工TaskLiningconstru

Tunnelconstruction

隧道施工

項(xiàng)目六支護(hù)施工Project6Supportconstruction任務(wù)二襯砌施工Task2Liningconstruction——襯砌臺車定位Liningtrolleypositioning學(xué)習(xí)目標(biāo)Learningobjectives2知識目標(biāo)Knowledgeobjectives能力目標(biāo)Competencyobjectives通過本任務(wù)的學(xué)習(xí)，學(xué)生應(yīng)了解襯砌臺車的基本結(jié)構(gòu)，掌握臺車定位步驟及具體的操作方法。Throughthestudyofthistask,studentsshouldunderstandthebasicstructureofliningtrolleys,masterthetrolleypositioningstepsandspecificoperationmethods.通過本任務(wù)的學(xué)習(xí)，學(xué)生應(yīng)能初步具備現(xiàn)場指導(dǎo)臺車定位的能力。Throughthestudyofthistask,studentsshouldbeabletoinitiallyhavetheabilitytoguidethepositioningoftrolleysonthespot.圖1隧道二襯施工圖紙F(tuán)igure1Tunneltwo-liningconstructiondrawings圖2混凝土模板施工Fig.2Concreteformworkconstruction話題引入Topicintroduction圖3滿堂支架現(xiàn)場拼裝模板Figure3Fullhallbracketon-siteassemblytemplate圖4襯砌臺車Fig.4Liningatrolley襯砌臺車Liningtrolleys走行系統(tǒng)走行小車鋼軌軌枕基本結(jié)構(gòu)BasicstructureWalkingsystemWalkthetrolleySleeperRail臺車中線隧道中線鋼軌中心線？中線重合ThemidlinecoincidesTrolleyCenterLineRailcenterlineTunnelmidlineB三者必須完全重合三者之間可以有誤差其他AC3.臺車面板可以左右調(diào)整≯15cm答案2.臺車定位的時候臺車中線必須

與隧道中線重合；4.走行軌道中線與隧道中線偏差

可以≯15cm1.臺車走行時臺車中線與走行

軌道中線重合；答案中線重合Themidlinecoincides面板拱頂面板邊墻面板邊墻面板面板組成Panelcomposition門架Gantry千斤頂jack門架Gantry工作平臺Workplatform油缸Cylinder絲杠Screw絲杠Screw千斤頂jack門架組成Gantrycomposition面板移動Panelmoves液壓系統(tǒng)Hydraulicsystem前平移油缸后平移油缸左前升降油缸右后側(cè)模油缸右前升降油缸左后升降油缸右后升降油缸左后側(cè)模油缸右前側(cè)模油缸左前側(cè)模油缸操作手柄OperationCredit襯砌臺車定位目的：保證隧道凈空Thepurposeofthepositioningoftheliningtrolley:toensuretheclearanceofthetunnel圖5襯砌臺車定位Fig.5Positioningofliningtrolleys隧道凈空Tunnelclearance隧道中線放樣Tunnelmidlinelofting前平移油缸后平移油缸左前升降油缸右后側(cè)模油缸右前升降油缸左后升降油缸右后升降油缸左后側(cè)模油缸右前側(cè)模油缸左前側(cè)模油缸液壓系統(tǒng)Hydraulicsystem拱頂標(biāo)高的測設(shè)頂模定位Topmoldpositioning前平移油缸后平移油缸左前升降油缸右后側(cè)模油缸右前升降油缸左后升降油缸右后升降油缸左后側(cè)模油缸右前側(cè)模油缸左前側(cè)模油缸左前升降油缸有前升降油缸左后升降油缸右后升降油缸定模就位Themoldisinplace調(diào)整升降油缸---保證模板臺車的縱向坡度與隧道的縱坡保持一致。Adjusttheliftingcylinder---ensurethatthelongitudinalslopeoftheformworktrolleyisconsistentwiththelongitudinalslopeofthetunnel.問題：12m長的臺車，3

‰的縱坡，臺車前端比后端高多少才能保證縱坡與隧道縱坡一致？Question:12mlongtrolley,3‰longitudinalslope,howmuchhigheristhefrontendofthetrolleythantherearendtoensurethatthelongitudinalslopeisconsistentwiththelongitudinalslopeofthetunnel?4.5m臺車前端Frontendofthetrolley臺車后端Rearendofthetrolleyɑ？tanɑ=3

‰

定模就位Themoldisinplace前平移油缸后平移油缸左前升降油缸右后側(cè)模油缸右前升降油缸左后升降油缸右后升降油缸左后側(cè)模油缸右前側(cè)模油缸左前側(cè)模油缸左前側(cè)模油缸右前側(cè)模油缸左后側(cè)模油缸右后側(cè)模油缸側(cè)模就位Thesidedieisinplace5.5m安全防護(hù)Security其他注意事項(xiàng)：Otherconsiderations:（1）臺車在移動時要有專人指揮；Thetrolleyshouldbedirectedbyaspecialpersonwhenmoving;（2）臺車在移動時下部嚴(yán)禁過人過車；Whenthetrolleyismoving,itisstrictlyforbiddentopassbythelowerpart;（3）油缸只是為了調(diào)整模板尺寸而設(shè)，不承受混凝土澆筑時產(chǎn)生垂直力和側(cè)壓力；混凝土自重、施工荷載等均由支撐絲杠和模板剛性來承載。ThecylinderisonlydesignedtoadjustthesizeoftheformworkanddoesnotwithstandtheproductionofconcretepouringVerticalforceandsidepressure;Concreteweight,constructionload,etc.aresupportedbyleadscrewsandmoldsTheplateisrigidtocarry.其他主要事項(xiàng)Othermajormatters圖5三維仿真過程Figure53Dsimulationprocess圖6三維仿真平臺操作Figure6Operationofthe3Dsimulationplatform虛擬仿真實(shí)訓(xùn)Vir