庙林电站首部枢纽拦河坝冲沙研究和结构布置  

Sand flushing research and structure layout in the first water control barrage of Miaolin Power Station

作　　者：李晓平 田辉 李现飞 

机构地区：[1]云南省水利水电勘测设计研究院,云南昆明650021

出　　处：《水利建设与管理》2017年第9期19-23,41,共6页Water Conservancy Construction and Management

摘　　要：本文采用准二维恒定非均匀流输沙数学模型计算泥沙淤积形态和库前冲沙漏斗,根据输沙数学模型计算成果,提出首部枢纽拦河坝泄水建筑物的结构布置形式和水库调度运行方案,成功解决了庙林电站首部枢纽冲沙泄洪、减少过机泥沙的关键技术问题。经几年的运行观测,拦河坝排沙效果较好,拦河坝上游均未出现泥沙淤积,淤积形态优于设计预期,有效延长了水库的使用寿命,使水库和发电机组效益最大化。In the paper, quasi two-dimensional steady non-uniform flow sediment transfer mathematical model is adopted for calculating the sediment deposition morphology and reservoir erosion upstream funnel. The structure layout form of first water control barrage release structure and reservoir scheduling operation plan are proposed according to the calculation results of the sediment transfer mathematical model. Key technical problems in first water control project of Miaolin Power Station are solved, such as flood release and reduction of sediment passing through the turbine. The sand discharge effect of the barrage is excellent, sediment accumulation is not discovered on the upstream area of the barrage, and the sediment deposition morphology is better than the design expectation according to operation observation for several years. The service life of the reservoir is prolonged effectively, and the benefits of the reservoir and power generator set are maximized.

关 键 词：庙林水电站 拦河坝 关键技术 研究 实践 

分 类 号：TV554[水利工程—水利水电工程]