【摘要】 枕头坝一级水电站位于大渡河干流上,为减缓工程对鱼类的不利影响,提出了修建鱼道来改善大坝上下游鱼类种群交流。枕头坝一级水电站鱼道工程设计总长1 241.74 m,是目前国内已建和在建规模最大的鱼道工程。在鱼类游泳能力测试和水力学模型试验的基础上,对鱼道的过鱼对象、鱼道建筑物设计进行了研究。最终确定,枕头坝一级水电站采用单侧竖缝式鱼道,鱼道内过鱼孔流速建议为1.10~1.25 m/s;进口流速应大于0.15~1.3 m/s;鱼道设置3个进口,并增设诱鱼系统;还在鱼道进口和出口分别设置1个观察室,以便指导调整鱼道运行方式。更多还原

【Abstract】 Zhentou Ba I Hydropower Station is located on the mainstream of Dadu River. For mitigating the adverse effect on fish populations, it is proposed to construct fishway. The total length of fishway in Zhentou Ba I project is designed to 1 241.74 m which is currently the largest fishway in China. Based on the tests of fish swimming and hydraulic model, the fishes being passed through this fishway and the design of fishway structure are studied. The fishway is finally designed as unilateral vertical slot type, in which, the flow velocity in fish-passing orifices is recommended as 1.10-1.25 m/s, the velocity in inlet should be greater than 0.15-1.3 m/s, three inlets with fish-attracting system are set up and two observation rooms are built in fishway’s inlet and outlet respectively.更多还原