贵港二线船闸下引航道物理模型试验研究

徐进超; 宣国祥; 刘本芹; 黄岳; 祝龙

引用本文:	徐进超,宣国祥,刘本芹,黄岳,祝龙.贵港二线船闸下引航道物理模型试验研究[J].水利水运工程学报,2017,(6):9-13

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贵港二线船闸下引航道物理模型试验研究
徐进超^1,2, 宣国祥², 刘本芹², 黄岳², 祝龙²
1.南京信息工程大学水文气象学院，江苏南京;2.南京水利科学研究院通航建筑物建设技术交通行业重点实验室水文水资源与水利工程科学国家重点实验室，江苏南京

摘要:

引航道及口门区通航水流条件一直是多线船闸并列布置中十分重视的问题，如布置和运行控制不当，容易导致相关安全问题。建立了1:100的贵港枢纽下游及船闸引航道物理模型，研究贵港二线船闸的布置方案及其对引航道和口门区水流条件的影响。结合贵港枢纽的特点，分析枢纽不同泄流条件下，二线船闸原布置方案中引航道、一线船闸停泊段及口门区的流速大小，得到影响船闸引航道水流条件的控制工况；在此基础上，提出了优化布置方案，对不同布置长度及透空方式下引航道的水流条件进行了对比分析。根据研究成果，推荐二线船闸下引航道内采用隔流墙，布置长度为135 m，底部不透空或透空高度小于0.50 m的方案。研究成果为贵港二线船闸的优化设计提供了参考。

关键词: 贵港枢纽引航道口门区物理模型试验水流条件

DOI：

分类号:U612.32

基金项目:国家自然科学基金资助项目(51409141)；中国气象局气象软科学研究重点项目(2017[20])；淮河流域气象开放研究基金资助项目(HRM201503)

Model test study of low approach channel of Guigang second line shiplock

XU Jinchao^1,2, XUAN Guoxiang², LIU Benqin², HUANG Yue², ZHU Long²

1.College of Hydrometeorology, Nanjing University of Information Science and Technology, Nanjing;2.Key Laboratory of Navigation Structure Construction Technology of Ministry of Transport, State Key Laboratory of HydrologyWater Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing

Abstract:

The flow condition of the approach channel and its entrance in ship locks which are arranged parallelly is a key problem to scholars. An unreasonable layout of locks may lead to safety problems during operation. A physical model test with the scale of 1:100 is carried out to study the flow conditions of different layouts of the second line ship lock at the Guigang navigation junction. Based on the characteristics of the Guigang junction, the flow conditions of the approach channel of the second line ship lock, and the mooring section and the entrance of the first line are analysed under different discharge conditions. Then the control working condition affecting the flow of the approach channel is obtained, based on which the optimized layout schemes are proposed. The flow conditions of the approach channel in different optimized layouts are compared. According to the results, the scheme with the length of guide wall being 135 m and the height of cross section at the bottom of guide wall being less than 0.5 m is recommended. This study can provide a reference for the optimal design of the Guigang second line shiplock.

Key words: Guigang navigation junction approach channel entrance physical model test flow condition