平陆运河青年枢纽竖缝式鱼道优化设计研究  

Optimization design of vertical fishway in Pinglu Canal Youth Hub

作　　者：潘剑 凡明杰 王鑫 卫宪 侯轶群 李君涛 PAN Jian;FAN Mingjie;WANG Xin;WEI Xian;HOU Yiqun;LI Juntao(Pinglu Canal Group Co.Ltd.,Nanning 530200,China;Yellow River Survey,Planning,Design and Research Institute Co.Ltd.,Zhengzhou 450003,China;Tianjin Research Institute for Water Transport Engineering,Key Laboratory of Sediment of the Ministry of Transport,Tianjin 300456,China;Dagang Zhaodong Operation Branch,PetroChina Company Limited,Tianjin 300457,China;Institute of Hydroecology,MWR&CAS,Wuhan 430079,China)

机构地区：[1]平陆运河集团有限公司,南宁530200 [2]黄河勘测规划设计研究院有限公司,郑州450003 [3]交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456 [4]中国石油天然气股份有限公司大港油田分公司赵东采油管理区,天津300457 [5]水利部中国科学院水工程生态研究所,武汉430079

出　　处：《水道港口》2023年第6期924-929,共6页Journal of Waterway and Harbor

基　　金：国家重点基础研究发展计划资助项目(2022YFC3204200);中央级公益性科研院所基本科研业务费专项资金资助项目(TKS20210208)。

摘　　要：青年枢纽作为平陆运河最后一个梯级,需要设置鱼道,以保证钦江鱼类洄游通道的连通性。综合过鱼对象洄游行为及枢纽调度特征,提出左岸双鱼道设计方案,垂直竖缝式鱼道、鳗鱼道均布置在紧靠电站尾水的岸侧;鳗鱼道同竖缝式鱼道在下游观察室附近会合,之后合并至竖缝式鱼道。作为穿坝主体通道,竖缝式鱼道设计除满足过鱼目标洄游需求外,更需要在单一进口的设计前提下适应具有感潮特性的大水位变幅。为此,经鱼道模型试验,提出以促进池室内主流偏折、增大主流消能为优化原则的具有45°导流角的池室隔板结构,以增大进口附近池室水深、减小流速为优化原则的变坡式鱼道进口段布置。优化后的青年枢纽竖缝式鱼道适用于各典型运行工况,主流蜿蜒连续、未形成流速屏障。As the last cascade of the Pinglu Canal,the fishway has to be builted in accordance with the requirements of the environmental assessment approval to restore the connectivity of the Qinjiang River.Based on the migration behavior of fish passing objects and the characteristics of hub scheduling,a design scheme for the left bank double fish channel is proposed.The vertical slot type fish channel and eel channel are both arranged on the shore side close to the tail water of the power station;The eel channel meets with the vertical slit fish channel near the downstream observation room,and then merges into the vertical slit fish channel.As the main passage through the dam,the design of the vertical seam fishway not only meets the migration needs of fish passing targets,but also needs to adapt to large water level fluctuations with tidal characteristics under the premise of a single inlet design.Therefore,through fishway model experiments,a tank partition structure with a 45°diversion angle is proposed to promote the deviation of the main flow in the tank and increase the energy dissipation of the main flow.The variable slope fishway inlet section layout is proposed to increase the depth of the tank near the inlet and reduce the flow velocity as the optimization principle.The optimized vertical slit fishway of the Youth Hub is suitable for various typical operating conditions,with the mainstream winding continuously and without forming a flow velocity barrier.

关 键 词：鱼道设计 竖缝式鱼道 导流角 变坡布置 主流连续 流速屏障 平陆运河 

分 类 号：U643.2[交通运输工程—船舶及航道工程]