高密度电法在地下水勘探中的应用

Application of High-density Electrical Prospecting in Groundwater Exploration

地下水在矿区的赋存状况、渗流迁移、酸碱性等方面对岩土性质、工程结构、边坡地层安全稳定具有重要影响,在不破坏和影响地层原有结构的情况下采用高密度电法进行勘探是一种十分可靠的方法。根据工程实例,对高密度电法技术原理及后期的数据处理、推断解释进行梳理;该方法精度较高,施工方便,能快速直观地划分地层结构与圈定地下含水构造。通过高密度电法勘探结果分析布设的2个工程钻孔出水量均满足工程设计要求,为该地区下一步工程开采和地下水使用提供了可靠的地球物理数据支持。

The occurrence,seepage migration,acidity and alkalinity of groundwater in the mining ar⁃ea have an important impact on geotechnical properties,engineering structure,and safety and stability of slope strata.It is a very reliable method to use high-density electrical method for exploration without destroy⁃ing and affecting the original structure of the stratum.According to the engineering example,the technical principle of high density electrical prospecting and the later data processing,inference and interpretation are sorted out.The method has high precision and convenient construction,and can quickly and intuitively divide the stratum structure and delineate the underground water-bearing structure.Through the analysis of the results of high-density electrical prospecting,the water yield of the two engineering boreholes laid out meets the engineering design requirements,which provides reliable geophysical data support for the next en⁃gineering mining and groundwater use in the area.