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1、内容要点ÎAGI公司Î高密度电法方法原理Î高密度电法仪器Î反演软件Î应用实例Î野外施工设计Î仪器操作和数据采集Î方法技术和数据处理1高密度电法的应用6确定基岩深度6探测裂隙和洞穴6研究地面沉降6地质灾害的评估6地质填图和工程选址6构造和断层的定位与追踪6水下地质填图6寻找地下水6研究海水入侵6堤坝隐患探测6垃圾填埋场研究6圈定环境污染物的分布6监测环境污染的清理过程6寻找金属和非金属矿床6考古2研究石灰岩地区基岩深度3垃圾填埋场范围的圈定LandfillSurveyusingtheSting/Swiftautomaticresistivitysystem,Middletown,Pennsy
2、lvania,USADataCourtesyofScienceApplicationsInternationalCorporation(SAIC)4放射性污染物的圈定和监测http://www.orp.doe.gov/orp/?page=152&parent=0每个钢罐的容积大约4000立方米，相当于25米直径和10米高，在HANFORD，有170多个这样的钢罐，储藏化学和放射性污染物。放射性污染物的圈定和监测高密度电法显示地下30米深处放射性污染物的分布Rucker,D,Levitt,M.,Greenwood,J.,andYang,X.,2008,Inversionoflargeelec
3、tricalresistivitysurveysonmultiprocessorplatform,ProceedingsofSAGEEP,Philadelphia,PA圈定地下污染物的分布7用跨孔电阻率层析成像研究地下油罐漏油,美国奥克拉荷马州LayerCSiltyclayLayerBSandyclayGleyLayerASandStudySite:Enid,OklahomaHydrocarbonHydrocarbonObjective:TodefinethegeologicalcontrolsonthedistributionandlocationofLNAPL(hydrocarbo
4、n)inEnid,OKusingelectricalresistivitytomography(ERT)withtheaidofsedimentologicalanalysisConclusions:DatashowsthatthereisastructuraldomeinthesubsurfaceatthetopoflayerAalongthewesternsideofthesite.ThisstructuralhighcorrespondswiththeLNAPL.LNAPLisnormallythoughttobeasingleplume;however,itwasfoundin1t
5、o2meteramorphous‘blobs’shownongeoelectricalcross-sections.Anoverlayofasedimentologicalcross-sectionlabeledwesttoeastisshownontopofonegeoelectricalcross-sectionpassingthroughtheareaofthedome.DrillingintheareasshowntohaveLNAPL‘blobs’revealedthattherewasindeedLNAPLatthatlocation.ERTwiththeaidofsedime
6、ntologicalanalysisdelineatedtheLNAPL‘blobs.’Instrument:SuperStingR8withboreholecablesDate:August,2002Supportingdatafromdirectpushboreholeloggingsystem.Courtesyof©200312700VolenteRdBuildingA,Austin,TX78726Tel:+1(512)335-3338Fax:+1(512)258-9958E-mail:sales@agiusa.com8PictureshowsthestudysiteandO
7、klahomaStateUniversityWebsite:http://www.agiusa.comgasstationwhereLNAPLescaped.监测注水实验注水面积=3mx3m,注水量:2.7cm/天Socorro-NewMexicoTechVadoseZoneFacility,NewMexico,USADatacourtesyofUSDepartmentofEnergy’sOfficeofEnergy
