緊鄰地鐵區(qū)間隧道的深基坑施工變形研究.pdf

1、廣州大學碩士學位論文緊鄰地鐵區(qū)間隧道的深基坑施工變形研究姓名：王濤申請學位級別：碩士專業(yè)：結(jié)構(gòu)工程指導教師：孫作玉趙桂峰20070501AbstractItSinevitablythattheinfluencecouldbecausedtosurroundingsituationbydeepexcavationEspeciallywhenconstructedinthesoftsoilhjgbwaterlevelandothercomp

2、lexconditionsunderexcavationsoilslip，pitinstabilitypiledeflectionpitupUftsupportingstructuresedonsleakageandflowsoildisastersmayoccor9whichcancauseabigthreattothesurroundingbuildingsundergroundbuildingsandpipelinesAtthem

3、eantimemoreandmoresubwaysageconstructedteleaseheavytiaf：[]cIt’sanintractableproblemtocalculatethesoftdisplacementandprotectsubwaytunnelandotherbuildingswhendesigningandexcavatingdeepfoundationpitnearsubwaytunnelToqualita

4、tiveandquantitativeresearchonthesurroundingenvironmentespeciallysubwaytunnelneardccpexcavationinthispapernumericalsimulationanalysisinthetheorywithpracticalwaysisactedtotheentireprocessofabusinesscenterdeepexcavationwhic

5、hissupportedbydiaphragmwallwithinternalsupportsNeuralnetworksandfuzzycontrolalsoareadoptedinthispapertoforecastthelateraldisplacementofdiaphragmwallSomerolesandmeasuresaresummarizedtocontroltheinfluencecausedbydeepexcava

6、tionThemainworkincludes：FirstlythenumericalsimulationisresearchedonthestageexcavationofdeepfoundationpitItisanalyzedthatthestabilityofthesoilandthesupportingstructureandtheenvironmentalsecurityespeciallythetunnelwiththec

7、onstructionphasechangesThroughtheactualexcavationprocesssimulationanalysistherulesabouttheforcesandthelateraldisplacementsofwails，thegroundsettlementbehindwall，thetunneldeformationaresummarizedSomeconclusionsandrecommend

8、ationsareusefultothedeepfoundationpitdesignandexcavationIt’sshowedthatnumericalanalysismethodcaneffectivelysimulatethecomplicatedconstructionprocess，andforengineeringdesignanalysisandoptimizationSecondlyprimaryresearchis

9、processedondeformationintelligentforecastoftheretainingstructureItisverydifficultandcomplextopredictthewalllateraldisplacementaccordingtotraditionaltheoryandnumericalmethodbecauseoftheconstructionfuzzinessanduncertaintyo