拟U型弯道急流流态的调控措施研究  

Study on Regulation Measures of Torrent Flow Regime of U-shaped Bend Channel Flow

作　　者：王艳梅[1] 杨玲霞[1] 周明 段琼 范如琴[1] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450001 [2]河南省中原石油天然气开发总公司,河南郑州450007 [3]中建联勘测规划设计有限公司,河南郑州450046

出　　处：《水电能源科学》2015年第7期94-96,共3页Water Resources and Power

摘　　要：针对南湾水库溢洪道尾水渠U型弯道内恶劣的水流流态,提出在U型弯道入口处设置渠底锥形反超高横向坡降来改善弯道水面横比降,在弯道适当位置设置顺弯流态调整池来控制水流的顺弯运动,在顺弯流态调整池上下游池顶设置横向超高来调整水流入池和出池的单宽流量横向分布,以及在部分弯道的凹岸边坡设置导向翼等综合改善弯道急流的措施,并通过水工模型试验验证了U型弯道采取综合措施之后的改善效果。研究成果可为类似工程提供参考。This paper proposes several energy dissipation measures, considering the adverse flow pattern of U-shaped bend channel in spillway tail water canal of Nanwan Reservoir. Followings are the 4 measures： （a） Apply a tapered in- verse ultra high at the entrance to improve transverse slope. （b） Applya down-stream stilling basin at the transition of jet flow to make water flow more fluent. （c） ]mplement ultra-high measure to balance transverse singlewide flow distribu- tion when water flow in and out the stilling basin. （d） Install an oriented wing at the concave bank in some areas of the curve channel. Furthermore, the effects of the energy dissipation before and after implementing the measures are evalua- ted and compared through hydraulic model test. The research can provide reference for the similar projects.

关 键 词：弯道水流 改善措施 反超高 导向翼 模型试验 

分 类 号：TV91[水利工程—水利水电工程]