高密度电法在岩溶发育特征调查中的应用

The Application of High Density Resistivity Method to the Investigation of Karst Features

岩溶是石灰岩地区常见的地质构造特征,高密度电法具有测点密度大、信息量大、工作效率高等特点,用来探测石灰岩地区岩溶的发育特征是一种很有效的方法。通过在云山布置8条高密度电法测线,采用的数据测量方法是温施1装置类型,分析了云山溶洞、地面溶蚀洼地、溶沟以及山体内暗河在地电断面上的显示特征和相对位置,总结了云山岩溶发育的特点和分布规律,探讨了云山岩溶生成的机理。实践证明,采用高密度电阻率法探测岩溶发育特征是行之有效的。

Karst is a common geological structural feature in limestone area.High-density electrical measuring has the characteristics of high point density,large quantity of information and high efficiency,so it is a very effective method to detect karst limestone region.By arranging eight high-density electrical measuring lines on the Yunshan＇s mountain and using data measurement method of WS1,the author analyzed the characteristics and relative position of geoelectric cross section of Yunshan＇s mountain cave,ground karst depression,and underground rivers of mountain.The characteristics and distribution of karst of the Yunshan＇s mountain are also summarized.Meanwhile,the mechanism of karst of the Yunshan＇s mountain is discussed.It is proved that the method of using the high density resistivity to detect karst feature is effective.