層狀彈性半空間中群樁基礎(chǔ)沉降分析.pdf

1、同濟(jì)大學(xué)土木工程學(xué)院碩士學(xué)位論文層狀彈性半空間中群樁基礎(chǔ)沉降分析姓名：付佰勇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：巖土工程指導(dǎo)教師：黃茂松梁發(fā)云20080301ABSTRACTAlthoughtherearemanyresearchesaboutpilegroupsandpileraftfoundationinelastichalfspace，fewresearcheshasbeencarriedoutinlayeredelastichalfspac

2、eBesides，thereisstillabigconcernoverthespeedandprecisionofthecalculationforpilegroupsFocusingontheseproblems，asimpletheoryhasbeenproposedtoanalyzesinglepile，pilepileinteractionandpilegroupsThetheoryisbasedonthestressandd

3、isplacementsolutionofaxisymmetricprobleminthelayeredelastichalfspace，whichiscardedoutbyfinitedifferencemethodThoughexampleanalysis，researchonthebehaviorsofsinglepile，interactionfactorofpiles，stiffeningeffectfactorofpiles

4、，pilegroupsandpilerafthavebeenmadeThemainresearchworkofthispaperconsistsofthefollowingparts：1Thegeneralsolutionofaxisymmetricprobleminlayeredelastichalfspacehasbeendeducedinintegraltransformationandmatrixtransfermethod，w

5、hichcangivestressanddisplacementsolutionsofeverypositioninlayeredelastichalfspaceThissolutionCandealwithmanyloadtypesincludingconcentratedload，roundareaandannularareadistributedloadinuniformexpressionsComparedwithpresent

6、solutions，numericalresultsshowthatthetheoryinthispaperisidenticalwithMindlinsolutioninelastichalfspaceandFEMsolutioninlayeredelastichalfspaceGoodefficiencyhasbeenproven2Basedonthedisplacementsolutioninlayeredelastichalfs

7、pace，thesinglepile’SsettlementequationhasbeendeducedbyfinitedifferencemethodComparedwiththeintegralequationmethod，errorsreducedbyneglectingholesafterseparationofpileandsoilarediscussedAfteranalyzingoftheeffectofsubsectio

8、nnumberofpile，comparisonhasbeenmadewiththepresentresultswhichvalidatethetheoryinthispaper3ThedefinitionofinteractionfactorofpilepilegivenbypreviousresearchersisdiscussedinthispaperStiffeningeffectfactorofpile—pileisintro