直流电法在阳山县岩溶地区找水中的应用

Application of Direct Current Method in Water Exploration in Karst Area of Yangshan County

根据场地水文地质和地球物理条件分析判断,在地形条件复杂的岩溶地区,采用以直流中间梯度法为主、直流电测深法为辅的综合物探找水方法,论文对其方法选择及测线布置进行阐述,对测得数据进行处理并进行成果资料解释。研究结果表明,先采用中梯剖面法探测地下岩性变化和含水特性,然后通过电测深法进一步揭示不同深度含水构造分布,显著提高了找水的准确性与效率。

According to the analysis and judgment of the hydrogeological and geophysical conditions of the site,in the complex karst area with terrain conditions,the comprehensive geophysical exploration method with DC intermediate gradient method as the main method and DC electric sounding method as the auxiliary method is adopted.This paper describes the method of selecting the appropriate line layout,processing the measured data and explaining the results.The results show that the accuracy and efficiency of water searching can be significantly improved by using the mid-ladder profile method to detect the change of underground lithology and the characteristics of water content,and then by using the electric sounding method to further reveal the distribution of water structure at different depths.