响水涧抽水蓄能电站上库主坝分区及坝料设计

Design of Main Dam Zoning of Upper Reservoir and Dam Construction Materials of Xiangshuijian Pumped Storage Station

响水涧抽水蓄能电站上水库主坝为混凝土面板堆石坝,按照充分利用库盆扩容开挖料上坝,达到土石方挖填平衡的指导思想,根据坝体变形、渗流特性及坝体稳定等要求,结合坝基地形条件,进行合理的坝体分区及坝料设计,施工阶段结合料源实际情况对坝体分区进行了优化设计,节省了工程投资。设计计算、施工期监测和反演分析以及运行期监测成果表明:坝体总体变形量较小,应力分布符合类似工程一般规律,面板挠度和应力、接缝变形均在允许范围之内。

The main dam of the upper reservoir of Xiangshuijian pumped storage station is concrete face rockfill dam.Guided with the concept of making full use of the excavated materials from reservoir basin expansion to fill the dam and achieve balance of the earth-rock excavation and filling,reasonable dam zoning and dam construction materials shall be designed according to the requirements of dam deformation,seepage characteristics and stability of the dam in combination with the topographic conditions of dam foundation;at the construction stage,the design of dam zoning is optimized according to the actual conditions of the source of materials for saving the project investment.The calculation,monitoring in construction period,inversion analysis and monitoring results in operation period show that the total deformation of the dam is small,the stress distribution conforms to the general rules of similar projects,and the concrete face deflection and deformation of stress and joints are all within the allowable range.