杭州地區(qū)地基土m值的反演分析.pdf

1、浙江大學(xué)碩士學(xué)位論文杭州地區(qū)地基土m值的反演分析姓名：馮俊福申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：巖土工程指導(dǎo)教師：龔曉南俞建霖20040201BackAnalysisofMvaluesofFoundationSoilsinHangzhouAbstractFoundationstructuredesigninsoftsoilsisaverydifficultengineeringproblemTheelasticfoundationbeammetho

2、dhassomemeritssuchaseasycalculationpatternanddefinitemodelandmmethodisfittopracticalsituation，SOitisusedcomprehensivelymadwelcomebyconstructors，thusm。methodisrecommendedbymanyCodesButitisdifficulttoselectam—valuetosomeso

3、ils，andtheCodesprovidesascopeofmvalues，andtheyaredifferentinvariedregionsandsoilconditions，thusitisoptionaltOchoosem—valueofasoillayerforengineeringdesignersSoitisnecessarytocalculatem—valuesbyback。analysismethodusingmea

4、sureddatuofdeepfoundationpitForthispurpose，thispaperfirstgivesadescriptionofrecentresearchadvancesandabriefintroductionofbackanalysismethodSecond，thedevelopmentofditchesexcavationinHangzhouisintroducedandsomeoftenusedtyp

5、esoftheexteriorprotectedstructuresareillustratedAndmmethodisstatedindetailrecommendedbytheCodeThentheeffectsoftheinnerforceanddisplacementsoftheexteriorprotectedstructuresinfluencedbythevalueofMandthedifferentdepthsofinn

6、erpolingareanalysedwiththeM—Methodbackanalysisprogramme，Andthevariationofoptimizedvaluescausedbythenumbersofdifferentinversionparametersisalsoanalysedandaconclusionisdrawnthatapropriateparameternumbersshouldbeinuseofback

7、analysisFinally，basedonsomemeasureddam，thesutablevaluesofMforHangzhouRegionisobtainedandsomeusefulconclusionsaredrawnforconstructorsKeywords：foundationengineering，elasticfoundationbeammethod，backanalysism—value，retaining