欢迎来到天天文库
浏览记录
ID:33015415
大小:3.65 MB
页数:71页
时间:2019-02-19
《探地雷达在隧道超前地质预报与衬砌检测中的应用分析》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、西南交通大学硕士研究生学位论文AbstractIntothetwenty-firstcentury,inordertomeettheneedsofrapideconomicdevelopment,Chinahasfurtherincreaseditsinvestmentininfrastructure,promotedtherapiddevelopmentofhigh-speedrailwayinChina.Tomeetthetechnicalrequirementsofhigh—speedrailwayinco
2、mplexterrainareas.requirealotoftheconstructionoftunnels.Inthetunnelexcavationprocess,weneedtoknowinadvancethegeologicalchangesinFrontofFaceforthetunneltoprovideamoreaccurategeologicaldatainordertorationalizeexcavationoffootageintimeandamendtheconstructionplan
3、,tostrengl[hensecuritymeasurestoavoidaccidents.Inaddition,theprocessoftunnelconstructionandcompletionofqualityassessmentofqualityacceptancetesting,weneedfast,accurate,andcompletecontroloftunnelconstructionwithorwithoutqualitydefects.GroundPenetratingRadaristh
4、euseofhigh—frequencyelectromagneticpulsetoprobethesubsurfacemediaofageophysicalexplorationmethods,becauseofitshighresolutionratio,easyoperation,nondestructivetesting,imagevisualadvantages,suchastunnelgeologicalpredictionandtheliningofdetectionareawiderangeofa
5、pplications.GroundPenetratingRadarinelectromagnetictheorydevelopedonthebasisof,Electromagneticfieldtheoryandthepropagationofelectromagneticwavesisthetheoreticalbasisofgroundpenetratingradartechnology.FromthebasictheoryofelectromagneticfieldsMaxwell’Sequations
6、cutsintroducedplanewavepropagationcharacteristicsandpropagationinthemediumandtheelectromagneticpropertiesofthemedium;inlearningathomeandabroadradartechnologyonthebasisofresearchdata,throughtheXiangGuiRailway,GuiGuangRailway,LanYuRailwayandyourlineliningtunnel
7、geologicalpredictionanddetectionofawiderangeofpractice,theoryandapplicationofradartechnologyandaccumulatedexperience.(1)summarizedtheapplicationoftheworkingmethodsincollectingGPRdataanddatainterpretationmethods,expatiatedonnotesinthedatacollectionprocess,data
8、processingproceduresandmethodsoftargetidentification.(2)summarizedthetunnelgeologicalpredictionoftenencounteredinthecave,brokenbelt,softinterlayer,water-richrockandotheradversegeologicalf
此文档下载收益归作者所有