【英文标准名称】:StandardTestMethodforDirectShearTestofSoilsUnderConsolidatedDrainedConditions
【原文标准名称】:在固定排水条件下土壤直接剪切试验的标准试验方法
【标准号】:ASTMD3080-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D18.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:剪切强度;建筑;土壤;试验;施工材料
【英文主题词】:compactedspecimens;consolidated;direct-sheartest;drainedtestconditions;Mohrstrengthenvelope;shearstrength;undisturbed
【摘要】:1.1Thistestmethodcoversthedeterminationoftheconsolidateddrainedshearstrengthofasoilmaterialindirectshear.Thetestisperformedbydeformingaspecimenatacontrolledstrainrateonornearasingleshearplanedeterminedbytheconfigurationoftheapparatus.Generally,threeormorespecimensaretested,eachunderadifferentnormalload,todeterminetheeffectsuponshearresistanceanddisplacement,andstrengthpropertiessuchasMohrstrengthenvelopes.1.2Shearstressesanddisplacementsarenonuniformlydistributedwithinthespecimen.Anappropriateheightcannotbedefinedforcalculationofshearstrains.Therefore,stress-strainrelationshipsoranyassociatedquantitysuchasmodulus,cannotbedeterminedfromthistest.1.3Thedeterminationofstrengthenvelopesandthedevelopmentofcriteriatointerpretandevaluatetestresultsarelefttotheengineerorofficerequestingthetest.1.4Theresultsofthetestmaybeaffectedbythepresenceofsoilorrockparticles,orboth,(seeSection7).1.5Testconditionsincludingnormalstressandmoistureenvironmentareselectedwhichrepresentthefieldconditionsbeinginvestigated.Therateofshearingshouldbeslowenoughtoensuredrainedconditions.1.6Theremaybeinstanceswhenthegapbetweentheplatesshouldbeincreasedtoaccommodatesandsizesgreaterthanthespecifiedgap.Presentlythereisinsufficientinformationavailableforspecifyinggapdimensionbasedonparticlesizedistribution.1.7Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.WithinthistestmethodtheSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyofeachother.1.8AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.8.1Themethodusedtospecifyhowdataarecollected,calculated,orrecordedinthisstandardisnotdirectlyrelatedtotheaccuracytowhichthedatacanbeappliedindesignorotheruses,orboth.Howoneappliestheresultsobtainedusingthisstandardisbeyonditsscope.1.9Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:7P.;A4
【正文语种】: