渝东南岩溶缺水区水文特征及研究——以秀山县官庄为例

Research on Hydrological Characteristics of Karst Water-deficient Areas in the Southeast of Chongqing——Take Guanzhuang of Xiushan County as an Example

通过进行水文地质调查、物探、钻探及相关试验,综合分析研究重庆秀山县官庄岩溶地区的水文地质特征.主要含水岩组包括寒武系中上统及奥陶统下统地层,根据含水岩组富水性不同可划分为纯碳酸盐岩岩组、不纯碳酸盐岩岩组和碎屑三类;地下水赋存条件可分为松散岩类孔隙水、碳酸盐岩岩溶水、基岩裂隙水三个类型.研究区共完成8口供水井施工,成井7口,通过抽水曲线分析计算,单井涌水量高,经检测供水井地下水质量良好,加氯消毒及煮沸净化处理可作为生活饮用水源.

In this paper, the hydrogeological characteristics of Guanzhuang karst area in Xiushan county, Chongqing are comprehensively analyzed and studied through hydrogeological survey, geophysical exploration, drilling and related experiments. The main aquifer formations include the upper Cambrian and lower Ordovician strata, which can be divided into three types such as pure carbonate formations, impure carbonate formations and clastic formations according to the water-rich characteristics of the aquifer formations. The occurrence conditions of groundwater can be divided into three types such as pore water of loose rock, karst water of carbonate rock and fissure water of bedrock. A total of 8 water supply wells were constructed and 7 wells were completed in the study area. After testing, the groundwater quality of the water supply well is good. After chlorination disinfection and boiling purification treatment, it can be used as drinking water source.