Abstract: Based on hydraulic model experiments a series of problems about discharge floodwater and energy dissipation of Menkantan Hydro-power Station were found. An optimum plan with better flood discharge and energy dissipation ability were proposed. Analysis of model tests demonstrated that flood discharge and energy dissipation ability of the plan could meet the project demand

Key words: Menkantan Hydropower Station, hydraulic structure model experiments, energy dissipation, flaring gate pier

摘要： 针对门坎滩水电站设计方案的泄流能力和消能效果等方面进行了模型试验,结果表明原设计方案存在溢流 坝泄流过于集中以及消能效果差、容易形成坝下冲刷等问题。通过采用宽尾墩结构和修改消力池及闸孔边墩布置 方式对原方案进行优化设计,其模型试验结果分析表明,优化方案泄洪能力、消能效果均满足工程要求。

关键词: 门坎滩水电站, 水工模型试验, 消能, 宽尾墩