| 长江中游典型微弯分汊河段择汊问题探讨 |
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| 引用本文： | 刘万利,李旺生,李一兵,朱玉德. 长江中游典型微弯分汊河段择汊问题探讨[J]. 水运工程, 2012, 0(8): 141-144 |
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| 作者姓名： | 刘万利 李旺生 李一兵 朱玉德 |
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| 作者单位： | 1. 清华大学水利水电工程系水沙科学与水利水电工程国家重点实验室,北京 100084;交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456
2. 交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津,300456 |
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| 摘 要： | 分汊河段整治的核心问题为择汊,因为它的确定将派生和决定航道整治工程的总体平面布局,而布局的合理性是工程成败的关键。通航汊道的选择问题,实质上就是分汊河段的航线选择问题,不过它较单一河槽河型航线选择要复杂得多。研究认为通航主汊应选择分水多、分沙少、呈发展趋势的一汊,具体到实际滩段须从两汊的现状条件(如分流分沙、航道条件等)、航道尺度发展水域、河型特征等进行全面的对比,综合分析两汊各种利弊条件。在戴家洲河段汊道近期河床演变和碍航特征分析基础上,对该分汊河段的两汊优缺点进行分析总结,提出选择戴家洲直港作为该河段的通航主汊道。
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| 关 键 词： | 微弯分汊 河床演变 择汊 |
Navigable channel selection of typical braided reach in middle Yangtze River |
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| LIU Wan-li,LI Wang-sheng,LI Yi-bing and ZHU Yu-de. Navigable channel selection of typical braided reach in middle Yangtze River[J]. Port & Waterway Engineering, 2012, 0(8): 141-144 |
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| Authors: | LIU Wan-li LI Wang-sheng LI Yi-bing ZHU Yu-de |
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| Affiliation: | State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China;Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China;Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China;Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China |
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| Abstract: | The navigable channel selection is the key of channel regulation, because it determines the waterway regulation project layout, which is crucial to the success of the project. The navigable channel selection is more complicated than channel line selection of single-channel reach. On the basis of the alluvial process analysis and the characteristics of navigation-obstruction of Daijiazhou reach in the middle Yangtze River, the shortcoming and merit of two channels of braided reach are investigated respectively. The selection of navigable channel is discussed.The navigable channel is proposed. |
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| Keywords: | braided channel alluvial process navigable channel selection |
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