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通过对已建8座大中型面流消能工程的调查总结,为改善面流消能设计与运行乃编写本文,提出合理选用面流流态及采取必要控制措施的看法。内容包括:面流衔接流态的特征;面流流态保证区与界限水深关系式;挑坎高度与挑角对扩大面流保证区的作用;挑流与面流的联合运用方式,采用导墙、隔水墙及合理开启闸孔来控制平面回流;对尾水波浪的控制与岸坡防护问题均提出建议,并对今后面流消能的科研工作提出了意见。
Based on the investigation and summary of 8 large and medium-sized face-flow energy dissipation projects built in this paper, this paper is written to improve the design and operation of face-flow energy dissipation, and puts forward the view of rational use of face flow pattern and necessary control measures. The contents include: the characteristics of surface flow convergence; the relationship between surface flow assurance area and limit water depth; the effect of pick height and pick angle on the expansion of surface flow assurance area; the combined application of pick flow and surface flow, Wall, barrier wall and reasonable open gate to control the plane back flow; make suggestions on the control of tailwave wave and bank slope protection, and put forward opinions on scientific research work of surface flow energy dissipation in the future.