逆作法地下結(jié)構(gòu)的受力特性分析

1、哈爾濱工業(yè)大學(xué)碩士學(xué)位論文逆作法地下結(jié)構(gòu)的受力特性分析姓名：尚文紅申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：耿永常20050601里壘簍三蘭奎蘭三蘭堡圭蘭堡鎏蘭AbstractWiththeglobalresourceshortageandenvironmentdeterioration，thedevelopmentandutilizationofundergroundspacehasbeenliftedtotheextremelyim

2、portantpositionandhaveputforwardmorestrictlyrequestfordeepfoundationpitOnthebaseofensuringstrengthandstabilization，deformationcontr01shouldbealsoconsideredThetop—downmethodisoneoftheundergroundengineering’constructionmet

3、hod，itcarlguaranteethestrengthandstabilizationassameaslimittheeffectofexcavatingonsurroundings，whichembodiesitssecurity；itcanutilizeitsownfloorassupportingsystem，assa／rleas，diaphgramwall(pile)isthestructure’Sverticalload

4、—bearingmemberwhenconstructionbybuildingdiaphgramwall，thediaphgramwalleffectasthewatertightscreenalso，namely“trinitywall”，whichfullyreflectsitseconomy；Whentheschemesofexcavationwithoutretainingandprotecting，soilnailingwa

5、llorsoilanchorarenotsuitable，topdownmethodissuitable，Therefore，ItismoreandmoreextensivetogoagainsttheapplicationintheundergroundprojectButforlongtimepeoplealldrawlessonsfromthedesignmethodofthetraditionalbracingoffoundat

6、ionpitsystemtodesignthat’Sofconstructingbytop—downmethodTheproblemisthatthetraditionalmethodoffoundationpitsystemwhichissuitabletocommonlyfoundationpitsystemdoesn’tconsiderthesupport’Sstiffnesscontributestothebracingsyst

7、em，SOthat，whenuseittofoundationpitengineering，thecalculateddisplacementisbiggerthantheactualvalueandthecalculatedintemalforceiSsmallerOnthebasisofconsultingalargenumberofscientificresearchthesesanddrawinglessonsfromother

8、s’researchresults，thistextfirstcharacteristicsthetopdownmethodandthemainmethodofbracingoffoundationpitsystem，thenconsideringthecharacteristicsofthetop—downmethodfoundationpitsystemamethodthatthesupportsystemandbracingsys

9、temarebearingforeetogetherisproposedInconsiderationofthesoilhasverystrongnonlinearity，thistexthasdonesomeimprovementtothebarfiniteelementmethodofelasticfoundation：LeadWangZhansheng’nonlinearanalysisoffoundationpitthatass