基于MATLAB的CFG樁復(fù)合地基優(yōu)化設(shè)計(jì)研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文基于MATLAB的CFG樁復(fù)合地基優(yōu)化設(shè)計(jì)研究姓名：李興毓申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：巖土工程指導(dǎo)教師：申翃20090501AbstractCementFlyashGravel(CFG)pilecompositefoundationisakindofverticalreinforcementcompositefoundations。Asindustrialwasteflyashcanbeaddedandnosteel

2、iSneededinthismethodaswellasthebearingcapacityofsoilcanbefullyUSed，engineeringcostoftheCFGpilesnormallyisonly1／3to1／2ofthatforpilefoundationsDuetoremarkableeconomicandsocialbenefitsCFGpilecompositefoundationsareappliedin

3、toengineeringpracticemoreandmorewidelyIngeneraldesigneachparameterisprimarilyassumedavalueaccordingtotherequiredbearingcapacityandthellitiSadjustedtosatisfythesettlementlimitationofsubsoilsItmaytakemanytrialsinthecalcula

4、tionwhiletheresultstillmaynotbeeconomicalThusitbecomesveryurgenttolookforamorereasonabledesignmethodFirstlythebasictheoryofcompositefoundationisintroduced，includingthecalculationmethodsaboutthebearingcapacityandsettlemen

5、tofthecompositefoundation，thentherequirementsofthedesigncalculationbystandardizationaboutCFGpilescompositefoundationareintroducedSecondlyfollowingthetheoreticalpreparationofCFGpilescompositefoundationiStheoptimizationdes

6、igntheoryEmphasisiSpaidonthreekeyelementsoftheoptimizationproblemmodel，includingdesignparametersobjectivefunctionandconstraintconditions，andtheniStheflowchartoftheoptimizationdesignThirdlythisP印el“brieflycoversthebasickn

7、owledgeofMArLABsoRwareandaspecificintroductiontotheflowcontrolstatementsofMATLABSORwareisshownTheinfluenceofdesignparameterswhichincludepilediameterpilelength，areareplacementrateandstrengthoftheCFGpilesonstabilizationeff

8、ectiSanalyzed‰u曲anestablishedhomogeneoussoilmassmodelof60mthick，therelationshipsbetweendesignparametersandbearingcapacityandsettlementofCFGpilecompositefoundationareshownbyusingthegraphicsofMATLABThisWOrkprovidesbasistos

9、electthedesignparametersfortheoptimizationdesignofCFGpilescompositefoundationAccordingtoabovementionedtheoreticalpreparationtheauthoradoptsthepilediameterpilelength，andareareplacementrateasthemaindesignparameters，whileco

10、nsideringthestrengthofthepilesThepermittedbearingcapacityofcompositefoundationandtotalcontrollingsettlementaretakenastheconstraintconditions。andthetotalvolumeoftheCFGpilesmixtureisselectedastheobjectivefunctionThedesigna

11、chievingthe1eastamountoftheCFGpilesmixtureistheoptimumone。UsingMATLABasacomputingplatformtheauthorsetsupaflowchartoftheoptimizationdesignaccordingtothefeaturesofMATLAB’SflowcontrolstatementsInthepaperapracticalengineerin

12、gprojectistakenasanexampletocarryoutoptimizationanalysisWiththesamesettlementvalueinoriginaldesignitshowsthevolumeofCFGpilesmixtureinthecasecanbesavedupto1O％Keywords：CFGpilecompositefoundation，bearingcapacitysettlement，M