ASTM D5202-2008 测定化学灌浆土壤的三轴压缩蠕变强度的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingTriaxialCompressionCreepStrengthofChemicalGroutedSoils
【原文标准名称】:测定化学灌浆土壤的三轴压缩蠕变强度的标准试验方法
【标准号】:ASTMD5202-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:chemicalgrout;creep;designstrength;long-termstrength;triaxialtest;Chemical-groutedsoil;Compressiontesting--soil;Creep--soil;Design--soilapplications;Loadingtests--soil/relatedmaterials;Long-termbehavior/performance;Mohrstresscir
【摘要】:Datafromthesetestsmaybeusedforstructuraldesignpurposes.Adequatesafetyfactors,basedonengineeringjudgmentmustbedeterminedbytheuser.Note28212;Samplingproceduresforin-situspecimenshaveamajorinfluenceontestresults.Specimenscarefullytrimmedinthelaboratoryfromlargeblocksamplestakeninthefieldhavetheleastchanceoffracturingpriortotesting.Samplepreparationmethodsoflaboratory-fabricatedspecimensalsohaveamajorinfluenceontestresults.SpecimensshouldbefabricatedinaccordancewithTestMethodD4320.Note38212;Thequalityoftheresultproducedbythistestmethodisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthistestmethodarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthedeterminationoflong-termstrengthanddeformationofacylindricalspecimenofeithera(undisturbed)fieldsampleorlaboratory-fabricatedchemicalgroutedsoilwhenitisshearedundrainedincompressionunderaconstantsustainedload.Note18212;Thevoidsofchemicalgroutedsoilsaremostoftensubstantiallyfilledwithgrout.Thus,porepressuresareunlikelytodevelop.Thistestmethodisnotapplicabletopartiallygroutedsoilsinwhichsubstantialporepressuresmaydevelop.Ifporepressuresmustbemeasured,referenceismadetoTestMethodD4767forequipmentandprocedures.1.2Thistestmethodprovidesdatausefulindeterminingstrengthanddeformationpropertiesofchemicalgroutedsoilssubjectedtosustainedloads.Mohrstrengthenvelopesmayalsobedetermined.1.3Thedeterminationofstrengthenvelopesandthedevelopmentofrelationshipstoaidininterpretingandevaluatingtestresultsarelefttotheengineerorofficerequestingthetest.1.4ThevaluesstatedineitherSIorinch-poundunitsshallberegardedseparatelyasstandard.Thevaluesineachsystemmaynotbeexactequivalents,therefore,eachsystemmustbeusedindependentlyoftheother,withoutcombiningvaluesinanyway.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.6Thistestmethodoffersasetofinstructionsforperformingoneormorespecificoperations.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Thewordx201C;Standardx201D;inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:5P.;A4
【正文语种】:英语