高桥水电站取水口防沙设计

Design of sediment prevent for intake of Gaoqiao Hydropower Station

高桥水电站取水口防沙设计,在原束水墙结合冲沙槽设计的基础上,进行了水工、泥沙模型试验。根据模型试验成果,先后进行了沉沙池方案、潜堰方案、潜堰+丁坝方案、圆弧形挡墙方案等的综合比较,最终选定了圆弧形挡墙方案,基本上解决了水电站取水口"门前清"和粗颗粒进入水电站取水口的问题,大坝泄洪冲沙底孔排沙效果也较好。

During the design of sediment prevent for the intake of Gaoqiao Hydropower Station, the hydraulic model test on sedimentation is made based on the original design of combining contraction wall with flushing chute. In accordance with the test, the comprehensive comparison is made on the schemes such as desilting basin, submerged weir, submerged weir with groyne and circular retaining wall ecL , and then the scheme of circular retaining wall is selected, with which the problem of siltation before the intake is solved with a better effect from the discharge and desilting bottom outlet of the dam.