| 长江下游土桥水道碍航特性及整治措施研究 |
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| 引用本文： | 江凌,吴翠微,杨利红.长江下游土桥水道碍航特性及整治措施研究[J].人民长江,2011,42(4):16-19. |
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| 作者姓名： | 江凌 吴翠微 杨利红 |
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| 作者单位： | 长江航道规划设计研究院,湖北,武汉,430011 |
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| 摘 要： | 长江下游土桥水道为一顺直分汊型河道，为解决主通航汊道内常出现水深不足的碍航浅包，且由于其规模及位置不稳定导致的碍航问题，将河床演变分析与二维水流数值模拟计算相结合，分析河床演变主导因素，探讨碍航浅包形成原因及航道整治措施。研究结果表明，碍航浅包的形成与河道特性及汊道演变密切相关，碍航问题的解决必须在疏浚的基础上配合改善局部河道形态、增加退水过程航槽冲刷力度的工程措施，如丁坝工程和锁坝工程，以达到有效提高浅区冲刷能力，改善航道水深的目的。
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| 关 键 词： | 土桥水道 河床演变 数学模型 航道整治 长江下游河道 |
Study of navigation-obstructing characteristics of Tuqiao Waterway in lower Yangtze River and regulation measures |
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| JIANG Ling,WU Cuiwei,YANG Lihong.Study of navigation-obstructing characteristics of Tuqiao Waterway in lower Yangtze River and regulation measures[J].Yangtze River,2011,42(4):16-19. |
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| Authors: | JIANG Ling WU Cuiwei YANG Lihong |
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| Affiliation: | JIANG Ling,WU Cuiwei,YANG Lihong(Changjiang Waterway Planning Design and Research Institute,Wuhan 430011,China) |
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| Abstract: | The Tuqiao Waterway is a straight and multi-branched reach in lower stream of the Yangtze River.In order to solve the navigation-obstructing problem by shallows of uncertain scale and position in the river channel,we analyze the dominant factor of fluvial process,and discuss the formation cause of the navigation-obstructing shallows and the measures for regulating the waterway by combining with riverbed evolution analysis and two-dimensional numerical simulation of the flow.The results show that the formati... |
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| Keywords: | Tuqiao Waterway riverbed evolution numerical model waterway regulation river channel of lower Yangtze River |
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