激发极化法在高标准农田灌溉及饮用水井选址中的应用

Application of induced polarization in the high standard farmland irrigation and the well site selection for drinking water

晋中地区地下咸水长期灌溉和饮用影响人体健康,为了指导高标准农田灌溉及饮用水井选址工作,通过在已有水井旁进行试验工作,了解了勘查区地质体电性基本特征,通过激发极化法划分咸淡水赋存区域和层位,简述激发极化法工作原理和区分咸淡水的基本依据,实践证明运用激发极化法指导水井选址合理、有效,可以做到有的放矢,降低工程成本。

The perennial irrigation and drinking of the saline groundwater, affect human health in the middle region of Shanxi Province. In order to guide the high standard farmland irrigation and the well site selection for drinking water, the basic electrical characteristics near the existing wells are investigated through the experiment. The occurrence areas and layers of saltwater and freshwater are divided through the induced polarization. The principle of the induced polarization and the fundamental basis to divide the saltwater and freshwater are briefly described. The practices have proven that the induced polarization is reasonable and effective for well site selection, which could be targeted and reduce project costs.