万家口子水电站碾压混凝土双曲拱坝水垫塘设计

Cushion Pool Design of RCC Double Curvature Arch Dam of Wanjiakouzi Hydropower Station

云南万家口子水电站大坝坝址河谷狭窄、泄洪能量大、水头高、泄洪消能难度大。水垫塘作为消能建筑物的重要组成部分,其设计技术方案借鉴了同类工程成功设计经验,并通过模型试验进行了优化和验证。水垫塘目前运行情况良好,结果表明水垫塘设计方案是合理可行的。

The dam site of Wanjiakouzi Hydropower Station in Yunnan Province is characterized by narrow valley,large flood discharge energy,high water head and difficult flood discharge and energy dissipation.As an important part of energy dissipation building,the design scheme of cushion pool draws on the successful design experience of similar projects,and is optimized and verified by model test.The cushion pool is in good operation at present,the results show that the design scheme of cushion pool is reasonable and feasible.