深基坑開挖條件下樁錨支護(hù)結(jié)構(gòu)工程性狀研究.pdf

1、長(zhǎng)沙理工大學(xué)碩士學(xué)位論文深基坑開挖條件下樁錨支護(hù)結(jié)構(gòu)工程性狀研究姓名：楊帆申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：巖土工程指導(dǎo)教師：周德泉201205ABSTRACTIntheexcavationoffoundationpit，theinteractionbetweensupportingstructureandsoilcancausethechangeofsupportingstructureperformance，itcanaffectthesaf

2、etyofthesupportingstructurestateInordertesearchchangeofthesupportingstructurewithfoundationpitexcavation，basedonthecomprehensiveanalysisofpreviousresearchmethodsandresults，combinedwithadeepfoundationsubjectofpile—anchorS

3、Ul彳portingstructurein“chongwencabinet”，theengineeringbehaviorsofsupportingstructurewascomparedandanalysedbetweennumericalsimulationandresultofrealmonitoringinthispaperMaincontentscanbesummarizedasfollows：1Thepapergeneral

4、izedthecurrentstudyingofpile—anchorsupportingstructurefromnumericalsimulation，theoryanalysisandcalculation，fieldandlaboratorytestsDesignandcalculationtheoriesofdeepfoundationpitwerediscussedMechanismofdeformationpitandin

5、fluencefactorsinfoundationpitwereanalyzed2Thecalculationmodelofpile—anchorsupportingstructurewasestablishedbymeansofsoftwareFLAC3Dbasedon“chongwencabinet”Displacementofpiletop，soildisplacementafterpile，varietyofpilebodya

6、ndprestressedanchors’SaxialstresswerediscussedThedisplacementrulesofpilesindifferentexcavationwereobtainedAxialstressdistributionandrulesonprestressedanchorswerediscussedandanalyzedinfoundationpitexcavation3Forengineerin

7、gmeasurements，combinedwithfielddataofthedisplacementinpileandsoil，thesimilaritiesanddifferenceswereobtainedfromtheanalysisandcontrastofthedatabetweennumericalsimulationandactualmeasurementItcanverifythefoundationissafeor