【英文标准名称】:StandardTestMethodsforDeepFoundationsUnderStaticAxialTensileLoad
【原文标准名称】:静态轴向抗拉荷载下深地基的标准试验方法
【标准号】:ASTMD3689-2007
【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】:D18.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:建筑;施工材料;天然石料;桩;岩石;石;抗拉荷载;抗拉强度;测试
【英文主题词】:axialstatictensilepilecapacity;fieldtesting;jack;loadcell;loadingprocedure;referencebeam
【摘要】:Fieldtestsprovidethemostreliablerelationshipbetweentheaxialloadappliedtoadeepfoundationandtheresultingaxialmovement.Testresultsmayalsoprovideinformationusedtoassessthedistributionofsideshearresistancealongthepileshaftandthelong-termload-deflectionbehavior.Afoundationdesignermayevaluatethetestresultstodetermineif,afterapplyinganappropriatefactorofsafety,thepileorpilegrouphasanultimatestaticcapacityandadeflectionatserviceloadsatisfactorytosupportaspecificfoundation.Whenperformedaspartofamultiple-piletestprogram,thedesignermayalsousetheresultstoassesstheviabilityofdifferentpilingtypesandthevariabilityofthetestsite.Iffeasible,withoutexceedingthesafestructuralloadonthepile(s)orpilecap,themaximumloadappliedshouldreachafailureloadfromwhichtheengineermaydeterminetheultimateaxialstatictensileloadcapacityofthepile(s).Teststhatachieveafailureloadmayhelpthedesignerimprovetheefficiencyofthefoundationbyreducingthepilinglength,quantity,orsize.Ifdeemedimpracticaltoapplyaxialtestloadstoaninclinedpile,theengineermayelecttouseaxialtestresultsfromanearbyverticalpiletoevaluatetheaxialcapacityoftheinclinedpile.Note18212;Thequalityoftheresultproducedbythesetestmethodsisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthesetestmethodsarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thetestmethodsdescribedinthisstandardmeasuretheaxialdeflectionofaverticalorinclineddeepfoundationwhenloadedinstaticaxialtension.Thesemethodsapplytoalldeepfoundations,referredtohereinas"piles,"thatfunctioninamannersimilartodrivenpilesorcastinplacepiles,regardlessoftheirmethodofinstallation,andmaybeusedfortestingsinglepilesorpilegroups.Thetestresultsmaynotrepresentthelong-termperformanceofadeepfoundation.1.2Thisstandardprovidesminimumrequirementsfortestingdeepfoundationsunderstaticaxialtensileload.Plans,specifications,provisions,oranycombinationthereofpreparedbyaqualifiedengineermayprovideadditionalrequirementsandproceduresasneededtosatisfytheobjectivesofaparticulartestprogram.Theengineerinresponsiblechargeofthefoundationdesign,referredtohereinastheengineer,shallapproveanydeviations,deletions,oradditionstotherequirementsofthisstandard.1.3Thisstandardallowsthefollowingtestprocedures:1.4Apparatusandprocedureshereindesignated"optional"mayproducedifferenttestresultsandmaybeusedonlywhenapprovedbytheengineer.Theword"shall"indicatesamandatoryprovision,andtheword"should"indicatesarecommendedoradvisoryprovision.Imperativesentencesindicatemandatoryprovisions.1.5Aqualifiedgeotechnicalengineershouldinterpretthetestresultsobtainedfromtheproceduresofthisstandardsoastopredicttheactualperformanceandadequacyofpilesusedintheconstructedfoundation.Seeforcommentsregardingsomeofthefactorsinfluencingtheinterpretationoftestresults.1.6Aqualifiedengineershalldesignandapproveallloadingapparatus,loadedmembers,supportframes,andtestprocedures.Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymat......
【中国标准分类号】:P22
【国际标准分类号】:93_020
【页数】:13P.;A4
【正文语种】:


【英文标准名称】:SecurityEngineeringSymbols
【原文标准名称】:工程安全符号
【标准号】:ASTMF967-1995
【标准状态】:作废
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:安全;符号;工艺学;工艺;最终制品
【英文主题词】:technology;enduseproducts;processes;safety;symbols
【摘要】:
【中国标准分类号】:P09
【国际标准分类号】:01_080_30
【页数】:
【正文语种】:英语