【英文标准名称】:StandardPracticeforDeterminingtheNormalizedPenetrationResistanceofSandsforEvaluationofLiquefactionPotential
【原文标准名称】:液化潜能的评价用砂的常规耐穿透性测定的标准操作规程
【标准号】:ASTMD6066-1996(2004)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:(Practice)
【标准水平】:()
【中文主题词】:地震;抗穿透率;液化;标准穿透试验
【英文主题词】:earthquakes;liquefaction;penetrationresistance;standardpenetrationtest
【摘要】:1.1Thispracticeoutlinesaproceduretoobtainarecordofnormalizedresistanceofsandstothepenetrationofastandardsamplerdrivenbyastandardenergyforestimatingsoilliquefactionpotentialduringearthquakes.Thenormalizedpenetrationresistancedeterminedinthispracticemaybeusefulfordeterminationofotherengineeringpropertiesofsands.1.2ThispracticeusesTestMethodD1586withadditionsandmodificationstominimizedisturbanceofsaturatedloosecohesionlesssandsduringdrilling.ThispracticecombinesresultsofTestMethodD1586andinterpretsthedatafornormalizationpurposes.1.3DuetoinherentvariabilityoftheSPT,guidanceisgivenontestconfigurationandenergyadjustments.Penetrationresistanceisadjustedforenergydeliveredinthepenetrationtest.Energyadjustmentscanbeestimatedormeasuredandreported.1.4Standardpracticefornormalizingpenetrationresistancevaluesisgiven.Penetrationresistancedataarenormalizedtoastandardoverburdenstresslevel.1.5Thenormalizedpenetrationresistancedatamaybeusedtoestimateliquefactionresistanceofsaturatedsandsfromearthquakeshaking.Evaluationofliquefactionresistancemaybeappliedtonaturalgroundconditionsorfoundationsforeitherplannedorexistingstructures.1.6Usingthispracticerepresentativedisturbedsamplesofthesoilcanbecollectedforidentificationpurposes.1.7Thispracticeislimitedtouseincohesionlesssoils(seeTestMethodD2487andclassificationsofSM,SW,SP,SP-SM,andSW-SMPracticeD2488).Inmostcases,testingisperformedinsaturateddepositsbelowthewatertable.Insomecases,drysandsmaybetested(see).Thispracticeisnotapplicabletolithifiedmaterialsorfinegrainedsoils.Gravelcaninterferewiththetestandresultinelevatedpenetrationresistancevalues.Normalizationofpenetrationresistancevaluesforgravellysoilsisbeyondthescopeofthispractice.Penetrationresistancemeasurementsoftenwillinvolvesafetyplanning,administration,anddocumentation.Thispracticedoesnotpurporttoaddressallaspectsofexplorationandsitesafety.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Performanceofthetestusuallyinvolvesuseofadrillrig;therefore,safetyrequirementsasoutlinedinapplicablesafetystandards.Forexample,OSHAregulations,DCDMAsafetymanual,drillingsafetymanuals,andotherapplicablestateandlocalregulationsmustbeobserved.1.8Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Withinthetext,theSIunits,areshowninparentheses.Thevaluesstatedineachsystemarenotequivalents,therefore,eachsystemmustbeusedindependentlyoftheother.1.8.1Inpressurecorrectioncalculations,commonunitsareton/ft2,kg/cm2,atm,andbars.Sincetheseunitsareapproximatelyequal(withinafactorof1.1),manyengineersprefertheuseoftheseunitsinstresscorrectioncalculations.ForthoseusingkPaorkN/m2,100kPaisapproximatelyequaltooneton/ft2.Thestressexponent,n,(see)isapproximatelyequalfortheseunits.1.9Thispracticemaynotbeapplicableinsomecountries,states,orlocalities,whererulesorstandardsmaydifferforapplyingpenetrationresistancetoliquefactionestimates.Otherpracticesexistforestimatingsoilinstabilityfrompenetrationresistancedata.Proceduresmaychangewithadvancesingeotechnicalengineering.Itisdependentontheuserinconsultationwithexperiencedengineerstoselectappropriatemethodsandcorrectiontodata.Inearthquakeeng......
【中国标准分类号】:A42
【国际标准分类号】:13_080_99
【页数】:16P.;A4
【正文语种】:


【英文标准名称】:Roadvehicles-M12x1,25sparkplugswithflatseatingandtheircylinderheadhousings
【原文标准名称】:道路车辆.M12×1.25平座火花塞和汽缸盖安装座
【标准号】:BSISO2705-1999
【标准状态】:作废
【国别】:英国
【发布日期】:2000-04-15
【实施或试行日期】:2000-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:机械零部件;内燃机;尺寸公差;道路车辆;道路车辆零部件;发动机部件;接线端配件;扭矩;点火系统(内燃机);火花塞;火花点火发动机;尺寸;基座;平的;汽缸盖;螺纹
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthemaincharacteristicsofM12×1,25spark-plugswithflatseatingwithnor-mal,longorextra-longreachandtheircylinderheadhousings,forusewithspark-ignitionengines.
【中国标准分类号】:J92
【国际标准分类号】:43_060_50
【页数】:12P;A4
【正文语种】:英语