论文部分内容阅读
河岸式溢洪道的设计中,常受地形地质条件的限制或其它原因不得不在平面上转一个角度,设置曲线型弯道,以节省土石开挖和衬砌工程量,降低工程造价.这种型式溢洪道主要的水力学问题乃为明渠弯道中高速水流因边墙偏转所引起的冲击波现象.特别是近年来,由于水电站建设的迅速发展,河岸式溢洪道采用的单宽流量越来越大,工程的规模也愈来愈大,因此,急流弯道的水力学问题就显得更为突出.
In the design of riparian spillways, it is often constrained by topographic and geological conditions or for other reasons to turn an angle on the plane and set up curvilinear bends to save excavation and lining work and reduce construction costs. This type of spillway mainly Of the hydraulics problem is the shockwave phenomenon caused by the deflection of the side wall in the high-speed water flow in the open channel bend.Especially in recent years, due to the rapid development of the hydropower station, the single-wide flow rate adopted by the riparian spillway is increasing, and the scale of the project As a result, the hydraulic problem of the jet stream becomes more prominent.