大干溪ⅰ号隧道软弱围岩大变形机理与其处治技术分析

《大干溪ⅰ号隧道软弱围岩大变形机理与其处治技术分析》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ABSTRACTRecently,withthecontinuousdevelopmentoftheimplementoftheChinaWesternDevelopmentStrategy,thenumbersofthetunnelsinthemountainsarealsorapidlyincreasedinexpresswayonanationalscale.However,theproblemoflargedeformationinthesoftrocktunnelismoreandmorecommon.Asaresultofthis,thetunn

2、elsinexpresswayareaccident-prone,andthemainreasonsarethecomplicatedgeographicconditionsofthesoftrocktunnel,theshortageoftherecognitionontheproblemoflargedeformationinthesoftrocktunnelbytheconstructionunitandthelackoftheguidanceoftherelatedtechnologiesandthespecificmeasures.Inordert

3、oguaranteethequality,duration,constructioncostandtheoperationsafetyoftheproject,theresearchontheproblemofthelargedeformationinthesoftrocktunnelandthecorrespondingsolvingtechnologiesplaysasignificantprojectvalue.CombinedwiththeDaganxiNo.ITunnelEngineeringofLongYongExpressway,thispap

4、erstudiesthehorizontalconvergence,theverticalsettlementandthecorrespondinghandlingtechnologiesofthesoftandbrokensurroundingrockofthetunnelsbasedonthenumericalsimulationsoftwareandtheon-sitemonitoringdata,andthemaincontentsareasfollows:(1)Analyzingthebrokentypes,formationmechanisman

5、dtheinfluencingfactorsofthelargedeformationofthesoftrocktunnelwiththereferenceoftherelevantdocumentsandmaterialsathomeandaboard;(2)Selectingthetypicalfracturesurfacetostimulatethedataoftheconstructionandanalyzingthesimilaritiesanddifferencesofinfluenceoftheactuallyadoptedbenchingtu

6、nnelingmethodandthereservedcorelandmethodinthedesigningletteronthesoftrocktunnelwithshallowburiedbasisonthesectionwithlargedeformationofZK66+790~ZK66+815oftheleftlineofDaganxiNo.I.(3)Describingtheimplementationoftheon-sitemonitoringtechnologyandanalyzingthemonitoringdataandmakingad

7、iscussiononthemechanismofthelargedeformationofthesoftrocktunnelwithshallowburiedbasis.(4)MakingaconclusiononthemainreasonsforthelargedeformationofthesoftII万方数据rocktunnelandmakingadiscussiononthedisposalplansonthesectionwithlargedeformationoftheDaganxiNo.ITunnelEngineeringofLongYong

8、Expressway,andgivingthestr