洋溪防洪控制性工程是广西柳江上以防洪为主、兼顾发电和航运的大型综合水利枢纽工程.洋溪鱼道工程最大设计水头30 m,鱼池采用横隔板竖缝式.针对洋溪以防洪为主的功能要求,结合运行水位变幅特点及过鱼时长保证率确定了鱼道运行水位,从而优化了鱼道进、出口数量.通过大比尺局部物理模型试验和鱼道整体物理模型试验,开展了鱼道全程水流流态模拟分析,提出了最终的鱼道设计方案.
Located on Liujiang River in Guangxi,Yangxi Hydraulic Complex is a large-scale comprehensive project privileged to flood control,incorporating with power generation and navigation.The maximum design water head of Yangxi fishway is 30 m.Diaphragm vertical seam type fishpond is adopted.The operating water level of the fishway is determined according to the functional requirement of Yangxi mainly for flood control,the characteristics of the operating water level variation range and the guarantee rate of fish passing time,so as to optimize the inlet and out-let quantity of the fishway.By large-scale local physical model test and overall physical model test of the fishway,water flow pattern simulation analysis of the whole fishway is carried out,based on which the final fishway design scheme is put forward.