任务精读：浅埋暗挖法（双语）课件讲解.pptx

隧道施工技术浅埋暗挖法TunnelConstructionTechnologyConstructionofOpen-cutTunnel

浅埋暗挖法概述OverviewoftheShallowUndercuttingMethod1浅埋暗挖法的优缺点与适用条件

Advantages,DisadvantagesandApplicableConditionsofShallowUndercuttingMethod

2浅埋暗挖法施工工艺ProcessofConstructionwithShallowUndercuttingMethod3课程小结Summary4浅埋暗挖法ShallowUndercuttingMethod目录TableofContents

浅埋暗挖法概述OverviewoftheShallowUndercuttingMethod01

地面条件允许的情况下，隧道宜采用明挖法，主要适合在人、交通和管线较少的地方应用。Ifthegroundconditionspermit,theopen-cutmethodshouldbeadoptedfortunnelconstruction.Themethodismainlyusedinareaswithfewpeopleandpipelines,andsmalltrafficvolume.浅埋暗挖法浅埋暗挖法概述ShallowUndercuttingMethodOverviewoftheShallowUndercuttingMethod浅埋暗挖法产生的背景BackgroundoftheInventionoftheShallowUndercuttingMethod浅埋暗挖法，是指在软弱围岩地层中，以改造地质条件为前提，以控制地表沉降为重点。Theshallowundercuttingmethodreferstothatintheweaksurroundingrockstrata,onthepremiseofimprovinggeologicalconditions,focusingoncontrollingsurfacesettlement.

浅埋暗挖法浅埋暗挖法概述ShallowUndercuttingMethodOverviewoftheShallowUndercuttingMethod浅埋暗挖法产生的背景BackgroundoftheInventionoftheShallowUndercuttingMethod因埋深条件、周边环境条件等因素的限制，在建筑物密集的繁华市区和特殊地质区段经常采用浅埋暗挖法施工。Limitedbyburialdepthconditions,surroundingenvironmentalconditionsandotherfactors,theshallowundercuttingmethodisoftenusedinprosperousurbanareaswithdensebuildingsandsectionswithspecialgeologicalconditions.以格栅和锚喷混凝土作为初期支护手段，遵循“新奥法”理论，按照“十八字”方针进行隧道的设计和施工。基本不考虑围岩的自承能力。takinggrille,andanchoringandshotcretingastheprimarysupportmeans,followingtheNATMtheory,andinaccordancewiththeeighteen-characterpolicy,thedesignandconstructionofthetunnelarecarriedout.Theself-bearingcapacityofthesurroundingrockisnotconsidered.

浅埋暗挖法浅埋暗挖法概述ShallowUndercuttingMethodOverviewoftheShallowUndercuttingMethod浅埋暗挖法在军都山黄土隧道、北京地铁复兴门折返线、复—八线、西单车站采用浅埋暗挖技术取得了巨大的成功。Theshallowundercuttingmethodwasadoptedint