三维高密度电法在海水入侵界面探测中应用——以莱州湾地区为例  

Application of the three-dimensional high density resistivity method to detection the interface of saltwater intrusion:a case study of Laizhou bay

作　　者：苏永军 黄忠峰 范翠松[1] 刘继红 刘宏伟 张国利 SU Yong-jun;HUANG Zhong-feng;FAN Cui-song;LIU Ji-hong;LIU Hong-wei;ZHANG Guo-li(Tianjin Center,China Geological Survey,Tianjin 300170,China;Key Laboratory of Muddy Coast Geo-Environment,China Geological Survey,CGS,Tianjin 300170,China)

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]中国地质调查局泥质海岸带地质环境重点实验室

出　　处：《地质调查与研究》2018年第2期134-137,152,共5页Geological Survey and Research

基　　金：国家地质调查项目:"莱州湾地质环境调查评价(12120113003800)"

摘　　要：本文从理论上阐述了三维高密度电法探测海水入侵界线的可行性,并在莱州湾地区实际应用,结果表明,根据三维高密度电法反演解析图勾划出来的咸淡水分界线与水文地质调查结果基本吻合,说明了该方法在莱州湾地区探测海水入侵界面具有较好有效性、可行性。三维高密度电法反演结果包含丰富的地质信息,它不仅能反映地下咸淡水水体层位垂向上的厚度变化、横向上的延伸情况,建立各层位的相互关系,还可以反映地层层位的埋深及起伏形态,为查清海水入侵环境地质问题提供可靠的基础资料。In this paper,the authors expound theoretically the feasibility of exploring saltwater intrusion with the three-dimensional high density resistivity method,through effect analysis of an example in Laizhou bay area,it shows that the result of saltwater freshwater interface with the inversion of the three-dimensional high density resistivity method is almost consistent with the result of hydrogeological survey,and it is effective and feasible in Laizhou bay area.The inversion result of the three-dimensional high density resistivity method contains a large amount of geological information,the inversion result reflects not only the strata thickness variation of the vertical and horizontal extension on saltwater and freshwater,and establishes the relationships of every strata,but also the burial depth of stratum and the strata of ups and downs,this method provides reliable basic data for environmental and geological problems.

关 键 词：三维高密度电法 视电阻率 海水入侵 莱州湾地区 

分 类 号：P631.3[天文地球—地质矿产勘探]