客运专线地基沉降计算、预测方法研究

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1、西南交通大学硕士学位论文客运专线地基沉降计算、预测方法研究姓名：刘志明申请学位级别：硕士专业：道路与铁道工程指导教师：蒋关鲁20090201西南交通大学硕士研究生学位论文第1I页AbstractTheconstructionoftheSpecialPassengerTrainrequiredhighlysmoothnessandstablysub-ra订foundations，SOlimitedthedistortioniSthelinchpinoftheSpecialPassengerTrain’Sdesignment．Basedthisthesisonthef

2、irstbitchoftheconstructionandthefirstonetoputintooperationoftheSpecialPassengerTrainbetweenJinanandQingdao，carryingoutthegeotechnicalengineeringinvestigationincludinglaboratoryexperiment，fieldin—situtests，fieldsettlementmonitoringteststosystematicallyanalysistheconcernedsettlementcalc

3、ulation&forecastmethodsofthespecialpassengertrain．Theprimaryresults：(1)Investigatingthecalculation，analysis，forecastmethodofthesettlement，SOastochoosingthemostlogicalmethodintheprocessofapplication．(2)Aimingatchoosingthecompressionmodulusinrelationtothe100—200kpaappliedstressresulting

4、fromlaboratoryexperiment，thispreconditiondistinctlydeparturefromthecomplexionofpracticeandtakeoninconsequentially．Gettingthroughanalyzingthelaboratoryexperiment，findingoutthattherelationbetweenthecompressionmodulus&consolidationcoefficientandaxialstrainaretakingonhyperbolafunction，and

5、thenexertingthisoutcomeintheprocessofthesettlementcalculation，thisprocessmeasuresupthepractice；atthesametime，thiscalculationprocesstakethestresshistoryandconsolidationstateintoaccount，putthissurveyintoactiontocalculatethesubsoilseRlementduringthesubgradefilling，SOastoimprovingthecalcu

6、lationaccuracy．(3)Contrastingandanalyzingthesettlementresultsrevealedthatduringtheprocessofthedesignchoosingfieldin—situteststoestimatethesettlementismorereasonable．Aimingatthespecialsection&thecommonsection．thissurveysuggeststhatittakestheplateloadingtest&thestandardpenetrationtestin

7、dividuallyandcombineswiththeOthertestmethodstocalculatethesettlement．(4)Duringthetraditionalsettlementforecastprocess，ittakesthesinglemethodtoforecastthewholeprojectandtakeserroranalysistotheresults，SOastochoosingthebestscheme，Buteveryforecastmethodhastheirownrational西南交通大学硕士研究生学位论文第1

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