【英文标准名称】:StandardTestMethodforDeterminingInSituModulusofDeformationofRockMassUsingRadialJackingTest
【原文标准名称】:通过径向升高试验测定现场岩体物质变形模数的标准试验方法
【标准号】:ASTMD4506-2008
【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】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:discontinuities;insitustress;loadingtests;radialjackingtest;Adit;Anisotropy;Deformation--rock;Displacement--rockenvironments;Fieldtesting--rock;Fracturetesting--rock;In-situsoil/rocktesting/analysis;Loadingtests--rock/relatedmate
【摘要】:Usingthistestmethod,avolumeofrocklargeenoughtotakeintoaccounttheinfluenceofdiscontinuitiesonthepropertiesoftherockmassisloaded.Thetestshouldbeusedwhenvaluesarerequiredwhichrepresentthetruerockmasspropertiesmorecloselythancanbeobtainedthroughlessexpensiveuniaxialjackingtestsorotherprocedures.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodisusedtodeterminetheinsitumodulusofdeformationofrockmassbysubjectingatestchamberofcircularcrosssectiontouniformlydistributedradialloading;theconsequentrockdisplacementsaremeasured,fromwhichelasticordeformationmodulimaybecalculated.Theanisotropicdeformabilityoftherockcanalsobemeasuredandinformationontime-dependentdeformationmaybeobtained.1.2ThistestmethodisbasedupontheproceduresdevelopedbytheU.S.BureauofReclamationfeaturinglongextensometers(1).Analternativeprocedureisalsoavailableandisbasedonareferencebar(2).1.3Applicationofthetestresultsisbeyondthescopeofthistestmethod,butmaybeanintegralpartofsometestingprograms.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:7P.;A4
【正文语种】:英语