考慮時間效應(yīng)的基坑內(nèi)土體加固優(yōu)化.pdf

1、⑧申請同濟大學(xué)工學(xué)碩士學(xué)位論文考慮時間效應(yīng)的基坑內(nèi)土體加固優(yōu)化培養(yǎng)單位：土木工程學(xué)院一級學(xué)科：土木工程二級學(xué)科：結(jié)構(gòu)工程研究生：陳洪良指導(dǎo)教師：唐忠德教授二Oo六年三月VS《S675AbstractAbstractThefoundationpitengineeringisallancientsubject，butthere’restillmanyproblemsneedingfurtherresearchTheincreaseofthe

2、pit’SdepthandsizecarriessomedifficultiestotheprotectionofthesurroundingsaroundfoundationpitItismainlythegroundseRlementcausedbytheexaction，whicheveninducesseriousaccidentThere’remanywaystocontrolthedisplacements，suchasst

3、rengtheningtheretainingstructuresorthestiffnessofbracingsystemorreinforcingtheinternalandtheexternalsoilofthefoundationpitThepapermainlyoptimizesthereinforcementoftheinternalsoilintegratingthecreepbehaviorofthesoftclayof

4、ShanghaiareaThepaperfirstlyquotestherelevantpreviousresearchesandanalysesthemechanicspropertiesofthereinforcedsoilBecausethereinforcedsoilisbeneaththesurfaceandsurroundedbythemoisturesoil，it’sdisadvantageoustotheconserva

5、tionThusthestiffnesschangesobviouslyastimegoesbyTheparametersreferredtotheregressedcurvefromlaboratoryButthereinforcedsoilisarrangedin鰣dstyles，whichdecreasethemechanicspropertySOsomediscountsweremadeduringsimulationSecon

6、dlyanalyzethecreepbehaviorofthesoilandpointouttheinfluencecausedbysoilcreepofShanghaiarea齬wellassomecreepproblemsneededtobeconsideredduringexcavationFiniteDifferentMethodWasusedtoanalyzethefoundationpitengineering，andthe

7、resultswerereasonableThepaperadoptstheFDM，andin仃oducesthegeotechanalySissoftnamedFLACⅢ，andanalyzesthetheoryoftheBurgercreepviscoplasficconstructionmodelThengeneratetheengineeringmodelreferringtorealitymadobtainaeconomica

8、lreinforcementrangethroughsimulationAtthesametimethepapercomparesthechangesoftheretainingstructuresdisplacementbeforeandafterreinforcedAtlastitshowsaserieSofusefulconclusions，whichCanbeusedtodirecttheprojectsSothatmakest