摘要
针对嘉陵江利泽航运枢纽鱼类洄游问题,提出应用较为广泛的竖缝式鱼道设计方案,采用三维水流数学模型,对比分析4种鱼道布置形式(改变池室宽度、竖缝宽度、改变隔板与导板的尺寸或角度)下池室水力特性。结果表明:在池室宽度3.0 m、竖缝宽度0.5 m、隔板长度2.1 m、导板长度0.7 m,且隔板与导板上游侧坡度分别为77°、45°条件下,池室主流曲率半径较大,两侧回流区强度较弱,水流流经休息室后流速较为稳定,水流衔接更加平顺,池室及休息室的水流条件符合鱼类上溯要求。研究成果可为类似鱼道工程提供参考。
Aiming at the problem of fish migration in Lize Shipping Hub of Jialing River,this paper proposes the design scheme of vertical slot fishway which is more widely used,and uses three-dimensional water flow mathematical model to compare and analyze the hydraulic characteristics of four fishway layout types(changing the width of the pool chamber,the width of the vertical slit,and changing the dimensions or angle of the bulkhead and guide plate).The results show that under the conditions of the pool chamber width of 3.0 m,vertical seam width of 0.5 m,the partition length of 2.1 m,the guide plate length of 0.7 m,and upstream slope of 77°and 45°for the partition and the guide plate,the curvature radius of the main flow in the pool chamber is larger,the strength of the reflux zones on both sides is weaker,the flow velocity is more stable after passing through the rest room,and the water flow connection is smoother.The water flow conditions in the pool room and rest room meet the upstream requirements of fish.The research results can provide reference for similar fishway projects.
作者
陈明
张超
姜鹏
黄海津
尹含归
CHEN Ming;ZHANG Chao;JIANG Peng;HUANG Haijin;YIN Hangui(Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education,Chongqing Jiaotong University,Chongqing 400074,China;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;CCCC Second Harbor Engineering Company Ltd.,Wuhan 430040,China)
出处
《水运工程》
2025年第6期95-103,共9页
Port & Waterway Engineering
基金
国家重点研发计划项目(2023YFC3206104)。
关键词
利泽水电站
竖缝式鱼道
数值模拟
池室结构
水力特性
Lize Hydropower Station
vertical slot fishway
numerical simulation
pool chamber structure
hydraulic characteristics
