| 三峡蓄水后枝江-江口水道演变趋势初步分析 |
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| 引用本文： | 朱玲玲,李义天,孙昭华,葛华.三峡蓄水后枝江-江口水道演变趋势初步分析[J].泥沙研究,2009(2). |
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| 作者姓名： | 朱玲玲 李义天 孙昭华 葛华 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 利用三峡蓄水后5年的观测资料,分析枝江江口河段航道条件的主要影响因素,在此基础上运用二维数学模型进行河床可动性研究.结果表明该河段河床可动性较强,洲滩以及河槽的冲刷变化将会导致枝江上浅区的水浅问题加剧,而枝江下浅区和江口浅区的碍航问题可以得到改善,同时冲刷将引起昌门溪枯水水位较大幅度的下降.
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| 关 键 词： | 沙卵石河段 浅滩 可动性 极限冲刷 |
Preliminary analysis on the Zhijiang-Jiangkou channel evolution trend after the impoundment of the Three Gorges Project |
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| ZHU Ling-ling,LI Yi-tian,SUN Zhao-hua,GE Hua.Preliminary analysis on the Zhijiang-Jiangkou channel evolution trend after the impoundment of the Three Gorges Project[J].Journal of Sediment Research,2009(2). |
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| Authors: | ZHU Ling-ling LI Yi-tian SUN Zhao-hua GE Hua |
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| Affiliation: | State Key Laboratory of Water Resources and Hydropower Engineering Science;Wuhan University;Whuhan 430072;China |
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| Abstract: | Based on the 5-year field data after the impoundment of the Three Gorges Project,the main factors affecting the navigation condition of Zhijiang-Jiangkou channel are analyzed.A study on the river bed movability using 2-D mathematical model is then presented.The results indicate that the movability of river bed is obvious.The flood-plain scour and channel erosion will aggravate the inadequate water depth at the Zhijiang up-shoal,but the navigation condition of Zhijiang down-shoal and Jiangkou shoal can be im... |
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| Keywords: | gravel bed shoal reach channel bed movability ultimate erosion |
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