基岩山区找水与蓄水条件分析--以单斜和接触型蓄水构造为例

摘要

Based on the analysis of water-storing conditions in bedrock mountainous area, two water-storing structures, monoclinic and contact tape water-storing structure, in Gongyi, henan province, have been described and verified with meth-ods of geophysical prospecting and drilling to provide information and reference for water searching in bedrock mountainous are-a. The results indicate that geophysical prospecting method can to some extent make the layers and aquifers in bedrock area visible and the conversion coefficient between the depths of geophysical anomalies and that of actual layers is demonstrated to be 0. 75 by the drilling. The difference of water flow between the two wells denotes the equal importance of three elements of a water-storing structure. When permeable layers and relatively impermeable layers constitute a good storage space, recharge conditions of groundwater determine the amount of water inflow.%基于河南巩义抗旱找水工作，在分析基岩山区蓄水条件的基础上，对巩义地区分处两地的单斜蓄水构造和接触型蓄水构造进行分析，并采用物探和钻探方法进行验证，结果表明物探方法对基岩山区地层与含水情况具有一定的“透视”功能，为基岩山区找水工作提供了技术支持。其中物探所揭示的异常深度与实际层位之间呈现良好对应，两者的换算系数为0.75。两地单井涌水量的差异则体现出蓄水构造三要素的不可或缺性与同等重要性。在透水岩层与相对不透水岩层构成良好储水空间的同时，地下水的补给条件决定了单井涌水量的大小。