激电测深半衰时参数在东平山丘区找水中的应用

The application of half decay time parameter of IP to exploration of underground water in the hilly area of Dongping

在东平山丘区缺水村庄的找水定井工作中,应用激电测深方法,结合区域水文地质条件,以激电测深参数视电阻率和视极化率基础,重点结合半衰时参数St进行综合分析,精确确定储水构造位置和富水地层深度。经后期地质钻探验证,确定的井位单井涌水量均在60 m3/h以上,解决了当地生产生活用水困难,为今后在类似地区的找水工作积累了经验。

Applying IP sounding method to the exploration of underground water in the villages of water shortage in hilly areas of Dongping,the authors made an integrated analysis of the half decay parameter Stso as to accurately determine the location of the groundwater-bearing structure and the depth of the water-rich strata. The study was in combination with regional hydrogeological conditions and on the basis of the IP parameters,i. e.,apparent resistivity ρsand polarization rate ηs. Drilling verification shows that the water inflow of per well is more than 60 m^3/h,thus solving the difficulties in the water supply for local production and people＇s livelihood. This study has accumulated experience for underground water exploration in similar regions in the future.