新洲水库库尾复杂岩溶对水库成库条件的影响分析

Influence Analysis of Xinzhou Reservoir Tail Complex Karst on Reservoir Conditions

新洲水库库尾河间地块岩溶发育,水文地质条件复杂,存在跨流域补给岩溶管道型连通水力联系。经仔细全面的地表地质工作并结合钻探、物探、洞探及连通实验成果分析研究,基本查清了该地块上岩溶水文地质单元结构,合理确定了河间地块间地下水等值线及泉域补排关系,为工程是否具备蓄水条件和合理确定正常蓄水位高程提供技术支撑。

There are karst topography and complex hydrogeological conditions at the tail interstream block in Xinzhou Reservoir,leading to the karst pipe type hydraulic connection of inter basin water recharge.By the analysis and research of surface geological work thoroughly and combining with drilling,geophysical prospecting,hole exploration and connecting experimental results,the structure of the karst hydrogeological unit is made clear in the block,rationally determining the contour lines and spring area groundwater recharge and discharge relationship in the interstream block,providing the technological support for storage conditions and reasonable determination of the normal water level elevation.