激发极化法在水文勘探中的应用

Application of induced polarization method in hydrological exploration

地下水评价的对象是浅层地下水,根据前期搜集地形资料、水文资料、附近工程地质资料等,水文物探工作需要指导地质勘察孔布置,并节省勘探工作量,因此采用激发极化法作为主要物探方法。激发极化法可采用电阻率法的各种装置进行,在本次探测中主要采用四极对称装置,最终为地质勘探提供测区内潜水面水位高程范围,且推测出一处古河道范围,为水文勘探工作提供可靠依据,取得了较好的研究效果。

In this paper,the object of groundwater evaluation is shallow groundwater,according to the previous collection of topographic data,hydrological data,nearby engineering geological data,hydrogeophysical prospecting work needs to guide geological exploration hole layout.The induced polarization method can be carried out by various devices of resistivity method,and the quadrupole symmetry device is mainly used in this exploration,the range of an ancient channel is inferred,which provides reliable basis for hydrologic exploration and gets better research results.