竖缝堵塞对竖缝式鱼道运行的影响研究  

Study on the influence of vertical seam blockage on the operation of vertical slit fishway

作　　者：李烈 吴攀高 李明泉 覃曼丽[1] 贾荣 苏冠维 LI Lie;WU Pan-gao;LI Ming-quan;QIN Man-li;JIA Rong;SU Guan-wei(Guangxi Vocational College of Water Resources and Electric Power,Nanning 530023,China;Guangxi Institute of Water Resources Research,Guangxi Key Laboratory of Water Engineering Materials and Structures,Nanning 530023,China;SOCOL CORPORATION LIMITED,Changchun 130033,China)

机构地区：[1]广西水利电力职业技术学院,南宁530023 [2]广西壮族自治区水利科学研究院,广西水工程材料与结构重点实验室,南宁530023 [3]中国水利水电第一工程局有限公司,长春130033

出　　处：《广西水利水电》2024年第1期1-5,23,共6页Guangxi Water Resources & Hydropower Engineering

基　　金：2022年度广西高校中青年教师科研基础能力提升项目(项目编号:2022KY1109);广西重点研发计划项目(桂科AB19259015、AB20159003)。

摘　　要：竖缝式鱼道在实际运行中,经常出现竖缝堵塞的现象。针对竖缝式鱼道在实际运行中的竖缝堵塞问题,通过数值模拟,还原了竖缝式鱼道在运行期间出现的竖缝堵塞情况。以老口航运枢纽鱼道为案例,分析了竖缝式鱼道在不同堵塞情况下的沿程流速、水流流态和紊动能,得出如下结论:竖缝堵塞时,影响上游5~6个池室的流速及下游3~4个池室;当竖缝堵塞0.8 h以上时流速减小,堵塞0.8 h以下时流速增大,堵塞程度为0.4 h时流速最大,为1.77m/s。对于老口航运枢纽鱼道的主要过鱼目标中“四大家鱼”来说,当竖缝处堵塞0.4 h要及时清理和修复,以保证鱼道的正常运行。Vertical seam blockage often occurs during the actual operation of vertical slit fishway.The situation of vertical seam blockage in the slit fishway during operation was restored by numerical simulation.Taking the fishway of Laokou Hydraulic Complex as example,analysis was made on the flow velocity,flow pattern and turbulent energy in the fishway under different blocking conditions with the conclusions as follows.When the vertical seam blockage occurs,the flow velocity in the upstream 5~6 pond chambers and downstream 3~4 pond chambers are affected.After the vertical seam is blocked more than O.8 h,the flow velocity decreases.The flow velocity increases when the vertical seam is blocked less than 0.8 h,and the maximum flow velocity is 1.77m/s when the degree of blockage is 0.4 h.For the four major Chinese carps,when the vertical seam is blocked up to 0.4 h,it should be cleaned and repaired in time to ensure the normal operation of fishway of Laokou Navigation Complex.

关 键 词：竖缝式鱼道 堵塞 水力特性 老口航运枢纽 

分 类 号：S956.3[农业科学—水产养殖] TV131.4[农业科学—水产科学]