小石峡水电站集鱼系统布置方案选择研究

Study on Layout Scheme Selection of Fish Collection System for Xiaoshixia Hydropower Station

已建水电站的集鱼系统布置方案选择不同于规划水电站的选择,其既要考虑过鱼系统的集诱鱼效果,又要考虑对已建电站的影响。以小石峡水电站集鱼系统布置为例,从集诱鱼水流条件、鱼类集群调查、发电尾水影响、行洪安全影响、施工期影响等角度,对拟定的4个集鱼系统布置方案进行了比选研究,推荐左岸集鱼槽型式(距尾水渠末端50 m)的集鱼系统布置方案。研究成果可为类似已建电站过鱼设计提供借鉴。

The layout scheme selection of fish collection system for built hydropower stations is different from selection of planned hydropower projects.It requires to consider both the fish collection effect of fish passage system and the impact on built hydropower station.This article takes the layout scheme selection of fish collection system for the Xiaoshixia hydropower station as an example,conducts a comparative study on four proposed layout schemes of fish collection system from the perspectives of fish trap flow conditions,fish cluster investigation,power generation tailwater impact,flood safety impact,and construction period impact,and recommends the left bank fish collection tank type(50 m from the end of tailwater channel).The results can provide a reference for the design of fish passing in similar built power stations.