成样方法对多种土体三轴试验结果的影响对比

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1、成样方法对多种土体三轴试验结果的影响对比Bycomparisonandanalysis，wecanfindthatnaturalmediumsand，Nanningfinesand，Namongsiltysand，Nantongsiltmadebydry—samplingmethodandmoist-samplingmethodinthetri-axialconsolidationun-drainedanddrainedtestweresignificantlydifferent．Inthetri-axialconsolidationun—drained：In

2、additiontomediumsand，thedry-samplingmethodshowedstrainhardening，andmoist—samplingmethodpresentedstrainsofteningbothlooseanddensestate．Forloosestate，moist-samplingmethodmoreinlinewiththegenerallaw．Fordensestate．dry-samplingmethodwereingoodagreementwiththegeneralrules．Thestudyoninstab

3、ilityandcriticalstatelinefoundthatthecharacteristicofstrainsofteningwaseasierexhibitedformoist．samplingmethodthandrv．samplingmethod．Forloosestate，thecriticalstatelineslopedry-samplingmethodandmoist—samplingmethodwereexactlythesame．neloosesamplespreparedbymoist—methodpresentstrainhar

4、deningandcontractibilitybasically，andyetthedry—methodsamplespresentstrainsofteninganddilatability．111edensesamplespreparedbydry-methodshowstrainsofteninganddilatability，andyetthemoist—methodsamplespresentstrainhardeningandcontractibility．Ingeneral，theshearresistanceindexesofdifferen

5、tsoilsmadebydry-samplingmethodarehigherthanmoist-samplingmethod．Duncan．ZhangModelParametersofdifferentsoilsmadebydry-methodandmoist·methodcall，tfindobviouslawanditslawwaitingtobefound．Inthetri—axialconsolidationan．drmnedsheartest,initialwatercontentofmoist-samplingmethodCarlinfluenc

6、etestresults．Inthetri．axialconsolidationdrainedsheartest，initialwatercontentofmoist-samplingmethodCan’tinfluencetestresults．KeyWords：Sands；Silts；Sample—preparingMethods；StressandStrainRelation；StressPath；InstabilityLine；ShearResistanceIndexes；Duncan-ZhangModelParameters大连理工大学硕士学位论文目

7、录摘要兽⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IAbstract⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯．．．．．．⋯⋯⋯⋯⋯．．．．⋯⋯⋯⋯．．．⋯⋯⋯．．．⋯⋯⋯．．⋯⋯⋯．．．．。III1绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．·1—1．1本文研究的意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一1—1．2国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．2—1．2．1国内规程中的成样方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一2．

8、1．2．2国内外有关成样方法的研究现状