摘要
白虎潭水库大坝设计的溢流堰宽为42 m,而下游河道最大水面宽度不足30 m。在设计水位条件下泄洪时,上下游水位落差超过70 m。为寻求适合白虎潭工程的消能防冲方案,采用水工模型试验的方法,分别从挑距、冲坑最深点距挑坎的距离和最大冲坑深度等方面,对5种不同的泄洪消能型式进行了试验研究,最终选定"台阶坝面+差动挑坎"联合消能的方案,很好地解决了溢洪道下游河道的消能防冲问题。
The designed weir width of Baihutan Reservoir dam is 42m and does not match with downstream channel width of 30m. When flood is discharged under designed water level, the water drop can exceed 70m. By hydraulics model test, we studied and compared 5 flood energy dissipation schemes from aspects of distance between center of scouring pit and flip bucket, largest scouring depth. The adopted solution of stepped spillway with differential flip bucket can solve the downstream energy dissipation problem successfully.
出处
《人民长江》
北大核心
2013年第16期51-54,58,共5页
Yangtze River
关键词
挑流消能
台阶式坝面
差动坎
白虎潭大坝
ski- jump energy dissipation
stepped spillway
differential flip bucket
Baihutan Dam
