高密度电法与地质雷达在岩溶勘察的综合应用

Comprehensive Application of High Density Resistivity Method and Geological Radar in Karst Exploration

为探明某拟建电厂区域内岩溶发育情况,确保电厂在建设及运营过程中的稳定,通过采用高密度电法与地质雷达联用的方式,对比场址区域内初步勘察钻孔数据,在场址区域范围内进行岩溶勘察。探测结果显示:高密度电法对深层的大型溶洞具有较好的分辨能力,而地质雷达对于浅层的中大型溶洞能够较好地探测,两者相结合能够较全面地揭露岩溶。这说明两种方法成果互补,结合钻孔勘察能够取得较好的识别效果,对于类似的岩溶发育区域的勘察具有参考意义。

In order to explore the karst development in the proposed power plant area and ensure the stability of the power plant in the process of construction and operation,the high density resistivity method combined with geological radar is used to compare the preliminary survey drilling data in the site area and conduct karst exploration within the site area.The detection results show that the high density resistivity method has good resolution ability for deep large karst caves,and thegeological radar can detect the shallow medium and large karst caves well,and the combination of the two methods can reveal the karst comprehensively.This shows that the results of the two methods are complementary,and the combination of drilling survey can achieve better recognition effect,which has reference significance for the investigation of similar karst development areas.