重庆某抽水蓄能电站下水库导流建筑物设计

Design of diversion building of lower reservoir for a pumped storage power station in Chongqing

水电站导流建筑物设计是水电工程建设的关键技术,为大坝施工提供保障。文章针对重庆某抽水蓄能电站下水库导流建筑物,通过水力学计算和造价比选,确定最优导流洞断面尺寸及围堰顶高程,分析了围堰的渗流及边坡稳定,围堰渗流及边坡稳定满足设计要求,可确保下水库大坝基坑安全。

The design of diversion building of hydropower station is the key technology of hydropower project construction and provides guarantee for dam construction.Aiming at the diversion structure of the lower reservoir of a pumped storage power station in Chongqing,this paper determines the optimal diversion tunnel section size and the top elevation of the cofferdam through hydraulics calculation and cost ratio selection,analyzes the seepage of the cofferdam and the stability of the slope,the seepage of the cofferdam and the stability of the slope meet the design requirements,and can ensure the safety of the foundation pit of the lower reservoir dam.