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【英文标准名称】:StandardGuideforUsingtheFrequencyDomainElectromagneticMethodforSubsurfaceInvestigations
【原文标准名称】:地下勘察用频域电磁法使用的标准指南
【标准号】:ASTMD6639-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D18.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:electromagnetics;frequencydomainelectromagnetics;geophysics;groundconductivity;surfacegeophysics
【摘要】:1.1PurposeandApplication1.1.1Thisstandardguidesummarizestheequipment,fieldprocedures,andinterpretationmethodsfortheassessmentofsubsurfaceconditionsusingthefrequencydomainelectromagnetic(FDEM)method.1.1.2FDEMmeasurementsasdescribedinthisstandardguideareapplicabletomappingsubsurfaceconditionsforgeologic,geotechnical,hydrologic,environmental,agricultural,archaeologicalandforensicinvestigationsaswellasmineralexploration.1.1.3TheFDEMmethodissometimesusedtomapsuchdiversegeologicconditionsasdepthtobedrock,fracturesandfaultzones,voidsandsinkholes,soilandrockproperties,andsalineintrusionaswellasman-inducedenvironmentalconditionsincludingburieddrums,undergroundstoragetanks(USTs),landfillboundariesandconductivegroundwatercontamination.1.1.4TheFDEMmethodutilizesthesecondarymagneticfieldinducedintheearthbyatime-varyingprimarymagneticfieldtoexplorethesubsurface.Itmeasurestheamplitudeandphaseoftheinducedfieldatvariousfrequencies.FDEMmeasurementsthereforearedependentontheelectricalpropertiesofthesubsurfacesoilandrockorburiedman-madeobjectsaswellastheorientationofanysubsurfacegeologicalfeaturesorman-madeobjects.Inmanyca
【中国标准分类号】:P13
【国际标准分类号】:07_060
【页数】:13P.;A4
【正文语种】: