弧形短导墙对船闸引航道水流结构影响的研究  

Study of the flow structure affected by cambered diverting wall in approach channel

作　　者：杨校礼[1] 李昱[1] 孙永明 吴龙华[1] 方文超[1] 

机构地区：[1]河海大学水利水电学院,南京210098 [2]江苏太湖水利规划设计研究院有限公司,苏州215100

出　　处：《水动力学研究与进展（A辑）》2016年第5期621-625,共5页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(51179057)~~

摘　　要：船闸常与其它过流建筑物结合布置,过流建筑物运行时常对船舶安全通航造成影响。船闸引航道表层横向流速是判断船闸引航道通航条件的重要指标之一,其它过流建筑物下泄流量的大小与枢纽布置直接影响表层横向流速的变化。该文通过数值模拟计算的方法,研究了七浦塘江边枢纽工程在原导墙形式下各种工况下水流流场结构,比较了增加直长导墙和弧形短导墙两种不同的优化方式对表层横向流速的影响。研究结果表明:在泄流区和引航道之间增加导墙长度有利于减小表层最大流速;弧形短导墙方案在满足同样横向流速限值情况下,可显著减少导墙长度,节约投资。The layout flock is always close to some other over-flow structure with which may threat the safety of ship navigation. The transverse velocity of surface-flow is one of the important indexes that can judge the navigation condition. The discharged volume affect the transverse velocity of surface-flow directly, the same as the layout of the main hydraulic structures. This article discusses the flow structure with the primary guide wall in qi pu tang engineering. The article also finds the difference between straight guide wall and cambered diverting wall. The result shows that： it may reduce the transverse velocity of surface-flow by increasing the length of the guide wall,which between the discharged area and approach channel; the cambered diverting wall can reduce the length of guide wall under the limit of velocity, for which can save investment.

关 键 词：弧形短导墙 船闸引航道 表层横向流速 数值模拟 

分 类 号：TV691[水利工程—水利水电工程]