資源描述：
《寒區(qū)隧道凍害預(yù)測(cè)與對(duì)策研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、.?西南交通大學(xué)碩士研究生學(xué)位論文第13頁西南交通大學(xué)碩士學(xué)位論文寒區(qū)隧道凍害預(yù)測(cè)與對(duì)策研究姓名：蘇林軍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：橋梁與隧道工程導(dǎo)教師：仇文革20070601.?西南交通大學(xué)碩士研究生學(xué)位論文第13頁AbstractWiththedevelopmentoftrafficbasalconstructions,lotsofhighwaytunnelsandrailwaytunnelsappeared.TheimplementingnationpolicyofWest-Exploitationmadetunnelengineeringextending
2、tocoldareawherethereislessofpeople,formidablenaturalconditionsofhighlatitudeandaltitude.Comparewithtunnelsincommonarea,theconstructionoftunnelsincoldareawillfacemorecomplicatedtechnicproblems,especiallytheproblemoffreezeinjury.Thestudyonantifreezingoftunnelsincoldareahasimportantpra
3、cticalmeaning,becausetherearealotoftunnelsincoldareainChina.Onthebasisofinvestigatingandanalyzinglotsoffreezeinjuryandallkindsoffrostresistingandantifreezingmeasurementsappliedthroughouttheworld,thispaperstudiedfreezingdamagemechanicsoftunnelsincoldarea,analyzedcausesoffreezingdamag
4、eoftunnelsincoldarea,andgeneralizedthepotentialfrostinjuryoftunnelsincoldarea,putforwardcomprehensivefrostresistingandantifreezingmeasurementssuitabletotunnelsinChinacoldarea.TakingRi'erlangshanTunnelProjectasactualbackground,thethesiscalculatedthetemperaturefield,frostforceandthick
5、nessofinsulationlayerofthetunnel.UsingtheFEMmethodtocalculatethetemperaturefieldforeandafterthetunnelformatted,wegetthemaximumfreezingdepthofthetunnelis1.8m.Introducingtheresultofthetemperaturefieldcalculationtothestressfield,wegetthemaximumfrostforceofthetunnelis1.66MPa;theliningof
6、thetunnelcanbearthetotalactionoftherockloadandfrostforce.Finally,bycalculating,thethicknessofthepolyurethanefoamboardis5cmattheentranceofthetunnel,and4cmattheinnerpartofthetunnel,,Thefrostresistingandantifreezingmeasurementsoftunnelsincoldareamainlyincludetheheatinsulationmethod,the
7、waterproofanddrainingmethod,theheatingmethodandthestructuralprotectingmethod.Inspecific,includingthemaskingdoor,installationoftheinsulationlayer,reinforcingthelining,strengtheningthepropertyofresistingfreeze-thawofthewallrock,heatingthecanal,insulationtheexit,deeplyburyingthedrainag
8、ecaveetc.Keywords:t
