穿越地裂縫淺埋暗挖地鐵隧道施工技術(shù)研究.pdf

1、學(xué)位論文獨(dú)創(chuàng)性說(shuō)明本人鄭重聲明：所呈交的學(xué)位論文是我個(gè)人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及其取得研究成果。盡我所知，除了文中加以標(biāo)注和致謝的地方外，論文中不包含其他人或集體已經(jīng)公開(kāi)發(fā)表或撰寫(xiě)過(guò)的研究成果，也不包含為獲得西安科技大學(xué)或其他教育機(jī)構(gòu)的學(xué)位或證書(shū)所使用過(guò)的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中做了明確的說(shuō)明并表示了謝意。學(xué)位論文作者簽名：日期：學(xué)位論文獨(dú)創(chuàng)性說(shuō)明本人鄭重聲明：所呈交的學(xué)位論文是我個(gè)人在導(dǎo)師指導(dǎo)下進(jìn)

2、行的研究工作及其取得研究成果。盡我所知，除了文中加以標(biāo)注和致謝的地方外，論文中不包含其他人或集體已經(jīng)公開(kāi)發(fā)表或撰寫(xiě)過(guò)的研究成果，也不包含為獲得西安科技大學(xué)或其他教育機(jī)構(gòu)的學(xué)位或證書(shū)所使用過(guò)的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中做了明確的說(shuō)明并表示了謝意。學(xué)位論文作者簽名：日期：Subject:ResearchontheConstructionTechnologyofMetroTunnelCrossingGround

3、FissurebyShallowExcavationSpecialty:ArchitecturalCivilEngineeringName:ZHAOFeng(Signature)Instruct:YUNYongfeng(Signature)XUShulei(Signature)ABSTRACTThepaperanalysisthelawofdefmationthedefmationquantityofthesurfacecrespond

4、stothetunnelaxistheinterioftunnelthatisnotcrossingcrossinggroundfissurebymeansofsoftwareasGTSnumericalsimulationinsitemonitingonthebasisofthecertaintunnelstructureparameters.Theconclusionsareasfollows:(1)Thesoilfarawayfr

5、omthegroundfissureisexcavatedbythemethodofupdownthestepstokeepthecesoilthesettlementoftunnelvaultsurfacearenotaffectedbygroundfissure.Thesettlementquantityincrackzoneisobviouslylargerthanthesettlementquantityawayfromthec

6、rackzonethatisexcavatedbyupdownthestepstokeepthecesoil.DuringthecrossingprocessbyCRDthesettlementofthesurfacenearthegroundfissureexcavatedisaffectedbywaterseriously.Therefethemeasuresofwaterproofingwaterdrainingshouldbep

7、reparedintheprocessofconstructionavoidcrossingthegroundfissureintherainyday.(2)Thefinalconvergencequantityconvergencerateoftunneltwistinthecrackzonearemuchlargerthanthefinalconvergencequantityconvergencerateawayfromthegr

8、oundfissure.Allthefinalconvergencequantitycansatisfytherequirementofsafety.WhenswitchthemethodofupdownthestepstokeepthecesoiltoCRDthedefmationoftunneltwistisnotaffectedbygroundfissure.(3)Thestressofliningfthetunnelisnots

9、ymmetricalbyCRDthestressofthevaultnearthegroundfissureislargerthanthestressofthevaultawayfromthecrackzone.(4)ThesoilnearthegroundfissureisexcavatedtheCRDmethodisadoptedtomovefwardoverall4partlocalsideofthepilottunnelsoil