【英文标准名称】:StandardGuideforUsingtheSurfaceGroundPenetratingRadarMethodforSubsurfaceInvestigation
【原文标准名称】:地表地面穿透雷达法探测地下的标准指南
【标准号】:ASTMD6432-1999(2005)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D18.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:环境现场特征描述;地质工程;地下探测;地表地球物理学;地面穿透雷达;地质学;地球物理学;地下水;土木工程
【英文主题词】:civilengineering;environmentalsitecharacterization;geologicalengineering;geology;geophysics;groundpenetratingradar;groundwater;subsurfaceinvestigation;surfacegeophysics
【摘要】:1.1PurposeandApplication:1.1.1Thisguidecoverstheequipment,fieldprocedures,andinterpretationmethodsfortheassessmentofsubsurfacematerialsusingtheimpulseGroundPenetratingRadar(GPR)Method.GPRismostoftenemployedasatechniquethatuseshigh-frequencyelectromagnetic(EM)waves(from10to3000MHz)toacquiresubsurfaceinformation.GPRdetectschangesinEMproperties(dielectricpermittivity,conductivity,andmagneticpermeability),thatinageologicsetting,areafunctionofsoilandrockmaterial,watercontent,andbulkdensity.Dataarenormallyacquiredusingantennasplacedonthegroundsurfaceorinboreholes.ThetransmittingantennaradiatesEMwavesthatpropagateinthesubsurfaceandreflectfromboundariesatwhichthereareEMpropertycontrasts.ThereceivingGPRantennarecordsthereflectedwavesoveraselectabletimerange.ThedepthstothereflectinginterfacesarecalculatedfromthearrivaltimesintheGPRdataiftheEMpropagationvelocityinthesubsurfacecanbeestimatedormeasured.1.1.2GPRmeasurementsasdescribedinthisguideareusedingeologic,engineering,hydrologic,andenvironmentalapplications.TheGPRmethodisusedtomapgeologicconditionsthatincludedepthtobedrock,depthtothewatertable(Wrightetal(1)178;),depthandthicknessofsoilstrataonlandandunderfreshwaterbodies(BeresandHaeni(2)),andthelocationofsubsurfacecavitiesandfracturesinbedrock(Ulriksen(3)andImseandLevine(4)).Otherapplicationsincludethelocationofobjectssuchaspipes,drums,tanks,cables,andboulders,mappinglandfillandtrenchboundaries(Bensonetal(6)),mappingcontaminants(Cosgraveetal(7);BrewsterandAnnan(8);Danielsetal(9)),conductingarchaeological(Vaughan(10))andforensicinvestigations(Davenportetal(11)),inspectionofbrick,masonry,andconcretestructures,roadsandrailroadtrackbedstudies(Ulriksen(3)),andhighwaybridgescourstudies(PlaczekandHaeni(12)).AdditionalapplicationsandcasestudiescanbefoundinthevariousProceedingsoftheInternationalConferencesonGroundPenetratingRadar(Luciusetal(13);HannienandAutio,(14),Redman,(15);Sato,(16);Plumb(28)),variousProceedingsoftheSymposiumontheApplicationofGeophysicstoEngineeringandEnvironmentalProblems(EnvironmentalandEngineeringGeophysicalSociety,1988-1998),andTheGroundPenetratingRadarWorkshop(Pilon(18)),EPA((19)),andDaniels(20)provideoverviewsoftheGPRmethod.1.2Limitations:1.2.1ThisguideprovidesanoverviewoftheimpulseGPRmethod.Itdoesnotaddressdetailsofthetheory,fieldprocedures,orinterpretationofthedata.Referencesareincludedforthatpurposeandareconsideredanessentialpartofthisguide.ItisrecommendedthattheuseroftheGPRmethodbefamiliarwiththerelevantmaterialwithinthisguideandthereferencescitedinthetextandwithGuidesD420,D5730,D5753,D6429,andD6235.1.2.2ThisguideislimitedtothecommonlyusedapproachtoGPRmeasurementsfromthegroundsurface.Themethodcanbeadaptedforanumberofspecialusesonice(Haenietal(21);Wrightetal(22)),withinorbetweenboreholes(Laneetal(23);Laneetal(24)),onwater(Haeni(25)),andairborne(Arconeetal(25))applications.AdiscussionoftheseotheradaptationsofGPRmeasurementsisnotincludedinthisguide.1.2.3TheapproachessuggestedinthisguideforusingGPRarethemostcommonlyused,widelyaccepted,andproven;however,otherapproachesormodificat......
【中国标准分类号】:P10
【国际标准分类号】:
【页数】:17P.;A4
【正文语种】: