赣江新干航电枢纽仿生态鱼道整体设计

Overall design of near-nature fishway in Xingan hydraulic project in the Ganjiang River

赣江新干航电枢纽的建立,阻碍枢纽区段洄游性鱼类的上溯通道,改变原有河流的水文情势和水生生态。为恢复鱼类洄游通道,保障赣江流域水生态环境,拟修建新干仿生态鱼道工程。针对该过鱼设施,从工程基本资料、过鱼目标、过鱼对象、运行水位组合以及鱼道形式选择、结构尺度等方面进行充分设计与分析,并建立物理模型试验对其水流条件进行进一步优化改进。结果表明,该仿生态鱼道在各种水位组合工况下能够满足目标鱼类上溯需求,水流条件较好。相关研究成果可为其他水利枢纽工程过鱼设施建设提供有效借鉴。

The construction of Xingan hydraulic project hinders the tracing channel of migratory fish in the junction area,and changes the hydrological regime of the original river.In order to restore the migratory passages of fish and guarantee the water ecological environment of the Ganjiang River basin,we plan a near-nature fishway,carry out adequate design and analysis in many ways,such as basic data,the main fish,fish way type,structure size,and establish a physical model test to further optimize and improve the flow conditions.The results show that the fishway designed can meet the upward demand of target fish under the designed water level combination condition,and the flow condition is well.The relevant research results can provide an effective reference for the construction of fishway in other water control projects.