軟土地基上分期施工的路堤沉降預(yù)測(cè)方法1

軟土地基上分期施工的路堤沉降預(yù)測(cè)方法1

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時(shí)間:2018-12-04

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1、附錄(英文文獻(xiàn)及譯文)SettlementpredictionofembankmentswithstageconstructiononsoftgroundLIUSong-yu(InstituteofGeotechnicalEngineering,SoutheastUniversity,Nanjing210096,China) JINGFei(InstituteofGeotechnicalEngineering,SoutheastUniversity,Nanjing210096,China)Abstract:Themagnitudean

2、drateofthesettlementarethekeyelementssubjectedtodesignanalysisofembankmentsonsoftground.TheobservationalInstituteofGeotechnicalEngineering,SoutheastUniversity,Nanjing210096,Chinamethodsbasedonfieldmeasurementhaveindicatedthepromisingresultsandbecomeeffectivemethodstopre

3、dictthefinalsettlement,whiletheuncertaintiesofparametersandtheorieslimitsignificantlytheaccuracyofsettlementestimation.ThispaperpresentsanobservationalmethodtopredictthesettlementperformanceofembankmentswithstageconstructiononsoftgroundbasedonAsaokamethod.Thecasestudies

4、showtheaccordanceofthepredictingresultswiththefieldmeasureddata.ItisalsogivenfromthecasestudythatthevalueofEu/Curatiorangesfrom50to100forJiangsuMarineclayanditsactualcoefficientofconsolidationisalmostoneorderofmagnitudelargerthanthelaboratorydata.Keywords:settlement,emb

5、ankment,observationalmethod,stageconstruction,JiangsuMarineclay0.IntroductionSettlementandstabilityaretwoprimaryconsiderationssystematicallyrelatedtothedesignofanembankmentonsoftground.Thetoolsavailableforthestabilityevaluationseemtobesatisfactory.Thekeyelementoflongter

6、mbehavioroftheembankmentroutinelysubjectedtodesignanalysisisthesettlement.Inotherwords,thesettlementanalysisisthemostappropriateapproachtotheembankmentanalysis.Thesettlementsofembankmentsonsoftclaysresultfromtheconsolidationandthelateralflowundertheembankments.Manyresea

7、rcheshavebeenmadeonperformanceofembankmentsonsoftground.Althoughmanyexperienceshaveshownthepracticalvalueofthetheoryforestimatingsettlementsandsettlementsrates,theyalsoillustratedsomeoftheproblemsinvolvedinmaking12accuratepredictionofthesettlement.Duncan(1993)andOlson(1

8、998)analyzedtheuncertaintiescausingtheshortcomingsinthecurrentstateoftheartforsettlementpredictionrespectively

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