九龙水库库区渗漏分析

Analysis of Jiulong reservoir leakage

九龙水库工程地质勘察采用工程地质测绘、钻探、高密度电法等手段,综合分析库区地形地貌、地层岩性、地表分水岭和地下分水岭关系、地下水封闭条件、不同时代岩溶发育规律和特征及地质构造影响等,研究得出库区地形封闭条件较好,勘察期间地下水位低于水库正常蓄水位,库岸地下水封闭条件较差,存在水家梁子正断层渗漏和近坝段鲕状灰岩、灰岩、白云岩条带渗漏问题。对库区渗漏问题进行分析,对水库建成蓄水具有重要意义。

Take Jiulong Reservoir as an example,engineering geological mapping,drilling,high-density electrical method and other means are used to comprehensively analyze the reservoir topography,formation lithology,the relationship between surface watershed and underground watershed,groundwater sealing conditions,the law and characteristics of karst development in different times and the influence of geological structure,etc.It is believed that the reservoir topography sealing conditions are good,and the groundwater level during the survey is lower than the normal water level of the reservoir,The sealing condition of groundwater on the bank of reservoir is poor,and there are leakage problems of Shuijialiangzi normal fault and oolitic limestone,limestone and dolomite strip near the dam section.It is of great significance to find out the seepage problem in reservoir area.