综合物探方法在湖南某贫水板岩地区找水的应用研究

选取位于“衡邵干旱走廊”上的湖南省邵东县蔼竹村为例,研究和分析利用综合物探方法在贫水板岩地层内找水的可行性。通过采用视电阻率联合剖面法、高密度电阻率法和激电测深法相结合的综合物探方法进行探测,可有效地查明区内赋水相对有利的断层构造等部位,从而实现间接找水的目的。研究结果表明:在板岩地区,先通过视电阻率联合剖面法和高密度电阻率法确定区内异常的大致位置,再结合激电测深,既能查明异常在垂向上发育状况,又可根据极化率参数来分析判断出低阻异常到底是“水”还是“泥”,找水效果良好,为类似地区物探找水提供了实际经验。

Application of Integrated Geophysical Method to Water Search in a Poor Slate Region of Hunan Province

Taking Aizhu village of Shaodong county in Hunan province,located in the Hengshao arid corridor as an example,this paper studies and analyzes the feasibility of using integrated geophysical methods to find water in a poor slate formation.By using the integrated geo-prospecting method combining the apparent resistivity composite profile method,the high-density resistivity method and the IP sounding method,it is possible to effectively identify the faulty structures with relatively favorable water-bearing capability within the area,thereby achieving indirect water-seeking.The results show that the apparent position of the anomaly in the area is determined by the apparent resistivity combined profile method and the high-density resistivity methodin the slate area.Combined with the IP sounding,it is possible to ascertain the abnormal development in the vertical direction.According to the polarizability parameter,we can judge the low-resistance anomaly is"water"or"mud",and the preferable water-seeking effectcan provide practical experience for geophysical exploration in similar areas.