ASTM D5778-2007 土壤的电子锥形摩擦轮和压电锥穿透试验的标准试验方法

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【英文标准名称】:StandardTestMethodforElectronicFrictionConeandPiezoconePenetrationTestingofSoils
【原文标准名称】:土壤的电子锥形摩擦轮和压电锥穿透试验的标准试验方法
【标准号】:ASTMD5778-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D18.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:现场试验;穿透;针入度计;土壤分析;土壤学;土壤;声测;地下调查;试验方法;试验
【英文主题词】:conepenetrationtest;conepenetrometer;explorations;fieldtest;frictionresistance;geotechnicaltest;in-situtesting;penetrationtests;penetrometer;piezocone;pointresistance;porewaterpressures;resistance;sleevefriction;soilinvestigation
【摘要】:1.1Thistestmethodcoverstheprocedurefordeterminingthepointresistanceduringpenetrationofaconical-shapedpenetrometerasitisadvancedintosubsurfacesoilsatasteadyrate.1.2Thistestmethodisalsousedtodeterminethefrictionalresistanceofacylindricalsleevelocatedbehindtheconicalpointasitisadvancedthroughsubsurfacesoilsatasteadyrate.1.3Thistestmethodappliestofriction-conepenetrometersoftheelectricandelectronictype.Fieldtestsusingmechanical-typepenetrometersarecoveredelsewherebyTestMethodD3441.1.4Thistestmethodcanbeusedtodetermineporewaterpressuresdevelopedduringthepenetration,thustermedpiezocone.Porewaterpressuredissipation,afterapush,canalsobemonitoredforcorrelationtotimerateofconsolidationandpermeability.1.5Additionalsensors,suchasinclinometer,seismicgeophones,resistivity,electricalconductivity,dielectric,andtemperaturesensors,maybeincludedinthepenetrometertoprovideusefulinformation.Theuseofaninclinometerishighlyrecommendedsinceitwillprovideinformationonpotentiallydamagingsituationsduringthesoundingprocess.1.6Conepenetrationtestdatacanbeusedtointerpretsubsurfacestratigraphy,andthroughuseofsitespecificcorrelations,theycanprovidedataonengineeringpropertiesofsoilsintendedforuseindesignandconstructionofearthworksandfoundationsforstructures.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.WithinSection13onCalculations,SIunitsareconsideredthestandard.Othercommonlyusedunitssuchastheinch-poundsystemareshowninbrackets.Thevariousdatareportedshouldbedisplayedinmutuallycompatibleunitsasagreedtobytheclientoruser.Conetipprojectedareaiscommonlyreferredtoinsquarecentimetresforconvenience.Thevaluesstatedineachsystemarenotequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Note1Thistestmethoddoesnotincludehydraulicorpneumaticpenetrometers.However,manyoftheproceduralrequirementshereincouldapplytothosepenetrometers.Also,offshore/marineCPTsystemsmayhaveproceduraldifferencesbecauseofthedifficultiesoftestinginthoseenvironments(forexample,tidalvariations,saltwater,waves).MechanicalCPTsystemsarecoveredunderTestMethodD3441.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:13_080_20
【页数】:19P.;A4
【正文语种】: