导流洞出口集中布置的优化研究

Study on Optimization of Centralized Diversion Tunnel Outlets

针对导流洞出口集中布置的优化问题,进行了大量的试验研究,得出"出流方向适中、扩散封堵回流、股间异步交汇、扩缩结合调整"的优化原则,较好地解决了泄水建筑物出口紧邻,且轴线与河道方向夹角较大,同时又有支流入汇等复杂条件的水力学问题。

The optimization problem of centralized diversion tunnel outlets is studied through model experiment on a hydroelectric project. It is concluded that the optimization principle is 'moderate outflow direction along river channel, effective diffusion to prevent backflow, asynchronous flow convergency between tunnels, and combined diffusion with contraction' which can solve the complex hydraulics problem in which flood discharge structures are located at the same side of a river, the angle between the outflow direction and the river channel is relatively big, and ramification is joined together.