为满足航运和经济发展要求,大源渡枢纽拟在一线船闸的基础上扩建二线船闸,现有的一线船闸上游引航道口门区位于弯曲河段,水流条件比较复杂。为使扩建后的二线船闸上游引航道口门区水流条件能够满足规范要求,主要选取3种不同形式的隔水墙布置方案,在最大通航流量Q=17 500 m3/s(10 a一遇)下,研究不同的隔水墙布置方案时上游引航道口门区通航水流条件、枢纽河段行洪能力以及其改善措施。结果表明:隔水墙能够改善口门区水流条件;综合考虑通航和行洪的要求,上游引航道选取透空式隔水墙布置方案较为合适。其研究结果可为类似工程的设计研究提供参考。
Abstract
To meet the requirements of shipping and economic development, a second shiplock is planned to be built at Dayuandu Navigation-Hydropower Junction, but the approach channel’s entrance area in the upstream of the existing first shiplock is in bend reach with complex flow conditions. To make sure that the flow condition at the second shiplock could meet standard requirements, we designed three cases of cut-off wall pattern, and analyzed the navigation condition, flood discharge capacity and improvement measures under maximum flow (Q=17 500 m3/s, once in 10 years) respectively in the presence of these three cut-off walls. According to calculation results and comprehensive considerations, we recommend permeable cut-off wall at upstream entrance area of approach channel. The research result could be regarded as reference for similar engineering design.
关键词
大源渡枢纽 /
引航道 /
透空式 /
隔水墙 /
水流条件 /
行洪
Key words
Dayuandu hydropower junction /
approach channel /
permeable /
cut-off wall /
flow condition /
flood discharge
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 杨锡安,刘德全.湘江大源渡航电枢纽总图设计[J].水运工程,2000,(7):42-45,48.(YANG Xi-an, LIU De-quan. General Layout Design of Xiangjiang Dayuandu Navigation-Hydropower Junction[J]. Port & Waterway Engineering, 2000,(7):42-45,48.(in Chinese))
[2] 李维娟,周作茂.大源渡航电枢纽总体布置设计探讨[J].水运工程,2004,(7):67-69. (LI Wei-juan, ZHOU Zuo-mao. On General Layout Design of Dayuandu Navigation-Power Junction[J]. Port & Waterway Engineering,2004,(7):67-69.(in Chinese))
[3] 黄伦超,刘晓平.关于大源渡枢纽的泄洪能力[J].交通科技,2000,(3):33-35.(HUANG Lun-chao, LIU Xiao-ping. The Discharge Capacity of Dayuandu Navigation-Power Junction[J]. Transportation Science & Technology,2000,(3):33-35.(in Chinese))
[4] 郑友宝,陈 波.船闸上游口门区连接段为弯道的通航水流条件[J].水道港口,2005,(2):99-102,108. (ZHENG You-bao, CHEN Bo. Test on Navigation Flow Condition of Curving Connect Section of Upstream Lock Entrance[J]. Journal of Waterway and Harbour, 2005,(2):99-102,108.(in Chinese))
[5] 卢文蕾.船闸口门区与连接段为弯道时的通航条件[J].水运工程,2009,(10):107-110,117. (LU Wen-lei. Navigation Condition when Entrance Area and Connecting Segment of Lock are in Bend[J]. Port & Waterway Engineering, 2009,(10):107-110,117.(in Chinese))
[6] 刘晓平,李 明.桥区河段横流对船舶航行的影响[J].水利水运工程学报,2012,(2):21-26. (LIU Xiao-ping, LI Ming. Influence of Cross Current on Ship in Bridge Navigable Waters[J]. Hydro-science and Engineering, 2012,(2):21-26.(in Chinese))
[7] 胡旭跃,欧阳飞.桥区通航问题及对策研究综述[J].水道港口,2005,(3):167-171.(HU Xu-yue, OUYANG Fei. A Review of Studies on Navigation Problem of the Area near a Bridge and Its Countermeasures[J]. Journal of Waterway and Harbour,2005,(3):167-171.(in Chinese))
[8] 王昌杰.河流动力学[M].北京:人民交通出版社,2008:105. (WANG Chang-jie. River Dynamics.[M] Beijing:People’s Communication Press, 2008:105.(in Chinese))
[9] GB50139—2004,内河通航标准[S]. (GB50139—2004, Navigation Standard of Inland Waterway[S].(in Chinese))
[10]周华兴.船闸口门外连接段通航水流条件标准初探[J].水运工程,2004,(4): 62-67. (ZHOU Hua-xing. An Approach to the Standard of Navigable Flow Condition at the Connection Reach Outside the Lock Entrance[J]. Port & Waterway Engineering, 2004,(4): 62-67.(in Chinese))
PDF(1942 KB)
