长江科学院院报 ›› 2020, Vol. 37 ›› Issue (6): 81-84,93.DOI: 10.11988/ckyyb.20190269

• 水力学 • 上一篇    下一篇

弧形短导航墙对船闸下游引航道内水流结构的影响

吴越1, 杨校礼1, 李昱2, 胡成1, 杨林3   

  1. 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,江苏 苏州 215100;
    3.贵州省水利水电工程咨询有限责任公司,贵阳 550081
  • 收稿日期:2019-03-18 出版日期:2020-06-01 发布日期:2020-06-21
  • 作者简介:吴 越(1994-),男,江苏宜兴人,助理工程师,硕士,研究方向为水力学及河流动力学。E-mail:914903048@qq.com

Influence of Arc-shaped Short Navigation Wall on Flow Structure in Downstream Approach Channel of Shiplock

WU Yue1, YANG Xiao-li1, LI Yu2, HU Cheng1, YANG Lin3   

  1. 1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China;
    2. Taihu Lake Water Resources Planning and Design Institute Co. , Ltd. , Suzhou 215100, China;
    3. Guizhou Water Resources and Hydropower Engineering Consulting Co. , Ltd. , Guiyang 550081, China
  • Received:2019-03-18 Online:2020-06-01 Published:2020-06-21

摘要: 通过物理模型试验,结合理论分析,研究了在不同下游水深条件下,直导航墙长度L变化对船闸下游引航道保护长度的影响,并在此基础上研究了增设弧形短导航墙对水流结构的调整与影响。物理模型试验研究表明:直导航墙长度的增加有利于改善船闸引航道口门区的通航条件,但在达到一定长度之后,再增加直导航墙长度对引航道口门区水流结构的改善效果减弱;弧形短导航墙对改善下游引航道保护区域内水流结构有很好的效果,选用较小纵向参数a和较大横向参数b效果更好,但张角不宜过大。

关键词: 弧形短导航墙, 船闸下游引航道, 水流结构, 表面横向流速, 物理模型试验

Abstract: The influence of changing the length of straight navigation wall on the approach channel downstream of shiplock in the presence of varied downstream water depth is investigated via physical model experiments together with theoretical analysis. On this basis, the influence of adding arc-shaped short navigation wall on flow structure is also examined. Increasing the length of straight navigation wall is beneficial to improving the navigation condition in the entrance area of the approach channel; after reaching a certain length, however, such improvement weakens. Arc-shaped short navigation wall has a good effect on improving the flow structure in the protected area of the downstream approach channel. Small longitudinal parameter “a” and larger lateral parameter “b” have better effect; but the opening angle should not be too large.

Key words: arc-shaped short navigation wall, downstream approach channel of shiplock, flow structure, surface transverse velocity, physical model experiment

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