| 长江口深水航道治理与河床演变关系初探 |
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| 引用本文： | 严以新,高进,诸裕良,郑金海.长江口深水航道治理与河床演变关系初探[J].河海大学学报(自然科学版),2001,29(5):7-12. |
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| 作者姓名： | 严以新 高进 诸裕良 郑金海 |
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| 作者单位： | 1. 河海大学交通与海洋工程学院
2. 湘潭工学院土木系 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 0 0 790 0 3) |
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| 摘 要： | 简要分析了北槽具有优良河势的各种因素，并根据长江口深水航道治理工程一、二、三期及远景规划实施后北槽分流比的数模计算结果，初步研究了深水航道治理与河床演变之间的关系。物理模拟试验结果显示，在分流河口由于边界层脱离而产生一个立轴旋涡－兰金涡（Rankine Vortex)，因而引发横向流，藉此可以解释底沙偏向南槽的输移问题。
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| 关 键 词： | 长江口 航道治理 北槽 河床演变 |
| 文章编号： | 1000-1980(2001)05-0007-06 |
| 修稿时间： | 2004/11/11 0:00:00 |
Preliminary Study on Relationship Between Deepwater Channel Regulation and Riverbed Evolution |
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| YAN Yi xin ,GAO Jin ,ZHU Yu liang ,ZHENG Jin hai.Preliminary Study on Relationship Between Deepwater Channel Regulation and Riverbed Evolution[J].Journal of Hohai University (Natural Sciences ),2001,29(5):7-12. |
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| Authors: | YAN Yi xin GAO Jin ZHU Yu liang ZHENG Jin hai |
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| Institution: | YAN Yi xin 1,GAO Jin 2,ZHU Yu liang 1,ZHENG Jin hai 1 |
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| Abstract: | The advantageous regime of the North Channel is briefly discussed in this paper.Based on the calculation of the diversion ratio for the regulation project after stages I,II,and III and the future plan,the relationship between the deepwater channel and riverbed evolution is studied.The experimental results show that a vertical vortex-the Rankine Vortex will appear in the diversion region of the river due to the departure of boundary layer.Therefore, a transverse current will appear to push the sediment towards the South Channel. |
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| Keywords: | Yangtze River Estuary deepwater channel regulation project North Channel Rankine Vortex riverbed evolution |
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