基坑單支撐圍護結構可靠性分析

1、浙江大學碩士學位論文基坑單支撐圍護結構可靠性分析姓名：余新建申請學位級別：碩士專業(yè)：市政工程指導教師：張儀萍20060501Pmbabm蚵ofsnglestⅢt陀切洲ngstⅢctu陀infoundationpitAbstractInmefoundationpitpmject，me仃aditionalevaluatingmemodissafbtyfactorndoesn’tconsiderthevariabil畸ofsoil，rcgar

2、dingsoilasallIlifo衄時Inatcrial、Ⅳithacen血“aVeragenature’’materialThemetllodtreatsvariouskindsofdesigncondi廿ons，variouskindsofindexesaIldDar鋤etersasfixedvalues，aIld也eresIllt丘Dmtheme也odisdefmed，soitiseasytoacceptbypeopleBmt1

3、1everytraditionalmethodhasne西ectedtlleuncertainpammetersofthesoilpropertiesa11domefs，WhichdoesnotactuallyconfornlwithrcalityThereliabilitymetllodisdifIbrcmf而mmemethodof廿aditionalsafbtyf如tor，W11ichconsidersscaneredpar鋤ete

4、rsofsonalldpanlIllctr’cd印endenceinsoilUncenainfactorsacnlallyeXistinghavebeellconsideredbyprobabili覘soitobjectiVelycanrenecttherealsafbtycharacteroffoundationpitAU、vorkdoneisaSfollow：1TheJCmemod趴dthco砸Inizationmethodareu

5、sedtocalcmatetllereliabil塒ofanti—ovemInlofsingles仃utretaillingstmctureinfoundationpit，analysingmatgrolllldloadandothcrparameters’valueandcoemcientimpactthereliabil時of刪ove咖mandsaf每tyfactor2Ch啪cterofpileisanalysedbybarsyst

6、emFEM，thenanalysesrelia_bilityofdisplacememandmomentwithTaylorstochasticfiniteeleIIlcmIrle也od趾dMonteCarlomethodThylorsecondordcrseriesmethod鋤alysestherelia_bilityofpile’sdisplacemem趾dmomemvaryingalongwjnlg州lllld10adaIldo

7、thcrpar啪eters；TaylorfirSt—orderseriesaIldT對lorsecondorderseriesstochastic療niteelememIncⅡlodandMonteCadomemodanalysereliabilityofthcmostu璐af宅placeofpileaboutdisplac鋤ent趾dmomemVaryingalong麗thgrollndloadaildotllerparameters

8、，whicharecomparcd砸meachomert3Basedonreliabilityofovert11manddiSplacemcntandmomentofpile，tllesystemreliabilityofretaillingstmctureisanalysed4Accordingtomedataofarealfolmdationpit，aIlalysereliabilityofoVertIlma11ddisplacem

9、emandmomentofpile，thenaIlalysetllesystemreliabilitybyDitlevsennaⅡowb蚴dmethodTheresultssllownlat1’aylorsecond—orderseriesisnotonlybriefbutalsoaccllrate，soitcallbewidelyappliedinprojectsKeywords：sin西estmt，a11tioven啪，barsys