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高密度电法是一种方便、实用的电阻率成像方法。它将电剖面和电测深两者兼容,可一次完成纵向、横向二维测量过程,对地下介质的电阻率结构具有一定的成像功能。高密度电阻率法排列方式多种多样,探测精度高,获取的信息量大,工作效率高,是地下岩石电性分层及寻找岩溶裂隙的有效方法。本文分析了高密度电法的原理与野外工作方法,通过应用实例说明高密度电法在寻找岩溶发育程度勘察中的作用。
High-density electrical method is a convenient and practical resistivity imaging method. It is compatible with electric profile and electrical sounding, which can complete the longitudinal and transverse two-dimensional measuring process at a time and has certain imaging function to the resistivity structure of underground medium. High-density resistivity method with a variety of arrangements, high detection accuracy, access to a large amount of information, high efficiency, underground rock is the electrical stratification and find effective method of karst fractures. This paper analyzes the principle of high-density electric method and field working methods, and illustrates the role of high-density electric method in looking for karst development level through application examples.