【摘要】 泾河东庄水库蓄水后地表水位大幅抬升,两岸地下水自然流场改变,进而影响地下水径流、水质、水量等,其中碳酸盐库段库水位高于现状条件地下水位,存在渗漏问题。针对泾河东庄水库工程水文地质条件,通过建立三维渗流数值模型,选取库水典型溶质,对水库蓄水后的地下水环境特征效应进行研究分析,结果表明:在推荐防渗方案下,水库蓄水会引起库区和坝址区附近地下水位上升,但不改变地下水的总体径流方向;水库蓄水对下游敏感水源点井(泉)水量和水质影响微弱,不会导致地下水质类别发生变化,不会产生大的环境地质问题。更多还原

【Abstract】 After storing water of Dongzhuang Reservoir of the Jinghe River,the surface water level is enhanced significantly,natural flow field of underground water changes which leads to impact on the flow,water quality and quantity of underground water,the underground water level of carbonate rocks in the reservoir area is higher than that under current condition so that leakage problem exists. This paper focused on the engineering hydrogeology of the Dongzhuang Reservoir,through building 3-D numerical flow model with choosing typical solvent from reservoir water,it studied and analyzed the impact of underground water environment after reservoir filling. The result shows that with recommended seepage prevention plan,reservoir filling will cause the rise of underground water level in the reservoir and surrounding area,but will not change the dominant flow direction of underground water; Reservoir filling will cause minor impact on the water quantity and quality of downstream sensitive water source well( spring),but will not change underground water quality category,neither leads to significant environment geological problems.更多还原