FAN工程竖井溢洪道水工模型试验

目前国内竖井泄流消能建筑物主要是结合已建导流隧洞,将临时建筑物加以利用形成永久建筑物,但往往都是作为单独结构进行布置设计,而埃塞俄比亚FAN工程根据工程特点,将土石坝与竖井溢洪道布置成为整体结构,竖井底部连接泄水底孔和坝基泄水管共同穿越大坝,结构布置方式比较新颖.以水工模型试验为手段,并运用相关理论结合试验数据进行分析,综合研究这种特别的竖井结构形式的溢洪道的泄流能力、压力特性、消能、空化空蚀及脉动压力等水力学问题,为该竖井溢洪道安全运行提供依据,以期为国内同类竖井溢洪道工程设计提供新的参考依据.

Study of shaft spillway hydraulic model test of Finchaa-Amerti-Neshe(FAN) project

At the present time,shaft buildings of discharge and energy dissipation mainly combine with diversion tunnels which have been built,and temporary buildings are used to form permanent buildings;but the shaft spillway is often arranged as a single structure;while in Finchaa-Amerti-Neshe Multipurpose Project of Ethiopia,it is combined with the dam into a whole structure;the underneath of shaft combining bottom outlet with the dam foundation pipes across the dam together.In this paper,research is seriously enga...