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MT/T 1076-2007 煤炭地质钻探规程

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基本信息
标准名称:煤炭地质钻探规程
发布日期:2009-01-01
实施日期:2008-11-19
首发日期:
作废日期:
出版日期:
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所属分类: 环境保护 环境保护采样 分析测试方法 水环境有毒物质分析方法
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【英文标准名称】:StandardTestMethodforDeterminingtheInternalandInterfaceShearResistanceofGeosyntheticClayLinerbytheDirectShearMethod
【原文标准名称】:用直接剪切方法测定土工合成粘土衬里内层和界面剪切强度的标准试验方法
【标准号】:ASTMD6243-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D35.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coefficientoffriction;directshear;GCL;interfaceshearresistance;performancetest;shearresistance;Coefficientoffriction(COF)--geosynthetics;Geosyntheticclayliner(GCL);Interfacesheartesting;Performance--geosynthetics;Sheartesting--ge
【摘要】:TheproceduredescribedinthistestmethodfortheshearresistancefortheGCLortheGCLinterfaceisintendedasaperformancetesttoprovidetheuserwithasetofdesignvaluesforthetestconditionsexamined.Thetestspecimensandconditions,includingnormalstresses,aregenerallyselectedbytheuser.ThistestmethodmaybeusedforacceptancetestingofcommercialshipmentsofGCLs,butcautionisadvisedasoutlinedin5.2.1.Theshearresistancecanbeexpressedonlyintermsofactualtestconditions(seeNote1andNote2).Thedeterminedvaluemaybeafunctionoftheappliednormalstress,materialcharacteristics,sizeofsample,moisturecontent,drainageconditions,displacementrate,magnitudeofdisplacement,andotherparameters.Note18212;Inthecaseofacceptancetestingrequiringtheuseofsoil,theusermustfurnishthesoilsample,soilparameters,anddirectsheartestparameters.Note28212;TestingunderthistestmethodshouldbeperformedbylaboratoriesqualifiedinthedirectsheartestingofsoilsandmeetingtherequirementsofPracticeD3740,especiallysincethetestresultsmaydependonsite-specificandtestconditions.ThistestmethodmeasuresthetotalresistancetoshearwithinaGCLorbetweenaGCLandadjacentmaterial.Thetotalshearresistancemaybeacombinationofsliding,rollingandinterlockingofmaterialcomponentsThistestmethoddoesnotdistinguishbetweenindividualmechanisms,whichmaybeafunctionofthesoilandGCLused,methodofmaterialplacementandhydration,normalandshearstressesapplied,meansusedtoholdtheGCLinplace,rateofhorizontaldisplacement,andotherfactors.Everyeffortshouldbemadetoidentify,ascloselyasispracticable,theshearedareaandfailuremodeofthespecimen.Careshouldbetaken,includingclosevisualinspectionofthespecimenaftertesting,toensurethatthetestingconditionsarerepresentativeofthosebeinginvestigated.Informationonprecisionbetweenlaboratoriesisincomplete.Incasesofdispute,comparativeteststodeterminewhetherastatisticalbiasexistsbetweenlaboratoriesmaybeadvisable.ThetestresultscanbeusedinthedesignofGCLapplications,includingbutnotlimitedto,thedesignoflinersandcapsforlandfills,cutoffsfordams,andotherhydraulicbarriers.5.4Whilethepeakstrengthsandpost-peakstrengthsmeasuredbythistestaregenerallyreproduciblebymultiplelaboratories,thedisplacementatwhichpeakstrengthandpost-peakstrengthoccursandtheshapeoftheshearstress-horizontaldisplacementcurvemaydifferconsiderablyfromonetestdevicetoanotherduetodifferencesinspecimenmounting,grippingsurfacesandmaterialpreparation.Theuserofresultsfromthisstandardiscautionedthatresultsataspecifieddisplacementmaynotbereproducibleacrosslaboratoriesandthattherelativehorizontaldisplacementmeasuredinthistestatpeakstrengthmaynotmatchrelativehorizontaldisplacementatpeakstrengthinafieldcondition.1.1ThistestmethodcoversaprocedurefordeterminingtheinternalshearresistanceofaGeosyntheticClayLiner(GCL)ortheinterfaceshearresistancebetweentheGCLandanadjacentmaterialunderaconstantrateofdisplacementorconstantstress.1.2Thistestmethodisintendedtoindicatetheperformanceoftheselectedspecimenbyattemptingtomodelcertainfieldconditions.1.3ThistestmethodisapplicabletoallGCLs.Remoldedorundisturbedsoilsamplescanbeusedinthetestdevice.1.4Thistestmethodisnotsuitedforthedevelopmentofexactstres......
【中国标准分类号】:W59
【国际标准分类号】:19_060
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:
【原文标准名称】:家用和类似用途电器的自动电控制器.第2部分:包括机械要求在内的电动水阀的特殊要求
【标准号】:NFC47-738/A1-1997
【标准状态】:作废
【国别】:法国
【发布日期】:1997-07-01
【实施或试行日期】:1997-07-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:Y60
【国际标准分类号】:97_120;23_060_99
【页数】:8P;A4
【正文语种】:其他