基于設(shè)計(jì)點(diǎn)法的CFG樁復(fù)合地基承載力可靠性研究.pdf

1、桂林工學(xué)院碩士學(xué)位論文基于設(shè)計(jì)點(diǎn)法的CFG樁復(fù)合地基承載力可靠性研究姓名：容艷申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：構(gòu)造地質(zhì)學(xué)指導(dǎo)教師：張桂林20080401桂林工學(xué)院碩士學(xué)位論文AbstractBasedon鋤alyzing鋤dcountingtheultimatebe撕ngcapacityoffouneencompositefoundationsimproVedbyCementFIy雒hGraVeI(CFG)pileengi眥eringsites

2、inthecityofGuilininthispaper，theprobabilitydistributionch盯acteristicsofeveryengineeringsiteisobtainedRe“abiI時(shí)ofbearingcapacityofCFGpilecompositefoundation鋤dprobabilisticlimitstatedesignmethodare勰alyzed鋤dstudiedby、vayofap

3、pIyingthereJiabmtytheoD，ofgeotechnicalengineeringThemainresearchcOnclusionsare嬲follows：1、Thesimplifiedfonllul舔ofequivaIentnonnalization0fEx仃emeValueIr趾domvariable鋤dLog枷蛐nicNo舢a(chǎn)l刪1domvariableareobtainedbyc鋤研ngon卸卸aJysisof

4、thercsultsofmeequiValentnonnalization0fthedesign—pointmethodThesimplifiedfbmuIasofequiVaIentnonIlaIizationofExtI’emeValueIraIldomv盯iableare嬲follows：sn蚓薩卜，脅張h249帆，％“州％％刮J?！?％礦蹭nl考IFI1，阮n再。‰_1488％，聽=o490聽，呶2蜥_0508聽。2、lnthi

5、spaper，Mazurkie、Ⅳiczmemodisdetemlinedtopredicttheultimatebe撕ngcapacit)rofCFGpilecompositefoundationThediagmmisprocessedbycomputerAndthestatisticalanalysisoftheuItimatebearingcapacityoffouneenCFGpilecompositefoundationeng

6、ineeringsitesiscarriedon1tgetsthatt11eV盯iationfactorsofbearingc印acityoffollrteenCFGpilecompositefbundationengineeringsitesinGuilma陀0005～0161TheaVe礎(chǔ)geVal眥oftheV撕撕on加torsisO0873、Thcbe撕ngcapacityreliabil塒ofeVeryengine硎ngisa

7、nalyzedbyuseofdesigIlpointmetllod11圮resultsindicatethatnleaveragevaluesofthereliabilityindex聲arc21499—89413，t11estaIldarddeViationsare01773~46560，thev耐ationflactorSareO0825~o5207；mereliabilityindex盧varywithloade脆ctcombin

8、ationsunderthegiventotal翰f酞yfactorK7rhereliabilit)，index盧decreasesaccordinglywiththeincre懿eofloadefrectratiopBaSedonthedefiniteloade彘ctratiop，thereliabilityindex盧increaseswithmegro州hofthetotalsafetyfactorK4、nepartial蠡lct

9、ors，underdi髓rent10ade航ctratiosandtotalsafetyfactors，arethat，、Ⅳhentllemaxim啪off100rliVeloadinciVilbuildingissuStainedf100rliVeloadd謝ngthedesignreferenceperiod，if怕=120，恂2140，thenthepanialfactorsofbearingcapac時(shí)are10122~2441