电法在黄石地区找水应用中的几点认识  

Some understandings on the application of electrical method for water prospecting in Huangshi area

作　　者：周耀质 杨世平 邓少平 谢玉福 卢鹏 Zhou Yaozhi;Yang Shiping;Deng Shaoping;Xie Yufu;Lu Peng(No.1 Geological Brigade of Hubei Provincial Geological Bureau,Daye 435100,China)

机构地区：[1]湖北省地质局第一地质大队,湖北大冶435100

出　　处：《工程勘察》2023年第10期73-78,共6页Geotechnical Investigation & Surveying

摘　　要：本文介绍了多年来在黄石地区应用电法找水实践中的一些经验认识,对几种不同类型地下水的电性特征进行了分析,并指出了一些在找水中需要注意的问题。总结认为,对于岩溶裂隙水,在纯碳酸盐岩中浅覆盖区找低阻异常、深覆盖区及岩体中(大理岩捕虏体)找高阻异常,非纯碳酸盐岩中找局部高阻中的相对低阻异常;对于构造裂隙水,找线性分布的低阻异常带。在异常解释与井位的选择上,应结合具体的地质和水文地质条件进行分析,注意避开泥质填充及连通浅表的异常点。同时,结合近些年的几个找水项目介绍了找水过程中的成与败,以供同行参考。Some experience and understanding of the application of electrical method in water prospecting practice in Huangshi area for many years are introduced.The electrical characteristics of several different types of groundwater are analyzed,and some problems needing attention in water prospecting are put forward.It is concluded that for finding karst fissure water,finding low resistivity anomalies in shallowmedium covered areas of pure carbonate rocks,finding high resistivity anomalies in deep overburden areas and rock masses(marble xenoliths),and finding relatively low resistivity anomalies in local high resistivity in non-pure carbonate rocks;for structural fissure water,finding low resistivity anomaly zone with linear distribution.The interpretation of anomalies and the selection of well locations should be carried out in combination with geological and hydrogeological conditions,and the attention should be paid to avoiding muddy filling and connecting shallow abnormal points.At the same time,the success and failure in the process of water prospecting are introduced in combination with several water prospecting projects in recent years for the reference.

关 键 词：电法找水 电阻率 岩溶水 构造裂隙水 

分 类 号：P631.3[天文地球—地质矿产勘探]