| 长江芦家河浅滩段石泓大开挖方案的研究 |
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| 引用本文： | 陈立,崔承章,谢葆玲.长江芦家河浅滩段石泓大开挖方案的研究[J].水科学进展,2003,14(3):341-344. |
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| 作者姓名： | 陈立 崔承章 谢葆玲 |
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| 作者单位： | 武汉大学水利水电学院, 教育部水沙科学重点实验室, 湖北, 武汉, 430072 |
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| 基金项目： | 交通部"九五"课题(95 1 2A) |
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| 摘 要： | 三峡水库蓄水运用后,长江芦家河浅滩段将出现局部坡陡流急的航道问题,石泓大开挖为解决此问题的方案之一.采用全沙动床模型实验方法,研究了石泓大开挖方案实施后对改善航道条件、对本河段及上游河段河势变化可能产生的影响等.研究表明:石泓大开挖方案将改善本河段的航行条件;也将使本河段枯水期的主、支汊易位;改变松滋河的分流特性;与此同时石泓大开挖方案将加剧上游水位的下降,并可能因此影响葛洲坝船闸的正常运行;挖槽中推移质泥沙的回淤有待于今后的进一步研究.
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| 关 键 词： | 浅滩 河势 挖槽 航道整治 河道演变 长江 芦家河 |
| 文章编号： | 1001-6791(2003)03-341-04 |
| 收稿时间： | 2002-02-06 |
| 修稿时间： | 2002年2月6日 |
Study on the chamfering of the Shihong section in Lujiahe shallow reach of the Yangtze River |
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| CHEN Li,CUI Cheng-zhang,XIE Bao-ling.Study on the chamfering of the Shihong section in Lujiahe shallow reach of the Yangtze River[J].Advances in Water Science,2003,14(3):341-344. |
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| Authors: | CHEN Li CUI Cheng-zhang XIE Bao-ling |
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| Affiliation: | College of Water Resources and Hydropower, Wuhan University, Key Laboratory of Water and Sediment Science of Education Ministry, Wuhan 430072, China |
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| Abstract: | The construction of the Three Gorges Reservoir may brings about a new problem to the Lujiahe shallow reach,and chamfering the Shihong(the right thalweg)is one of the measures suggested Based on the model experiment,the effect of chamfering has been studied,proving that chamfering can solve the problem of lag in depth in the navigation channel of shahong(the left thalweg)and escarpment and riffle as well,and improve the navigation condition of the whole reach completely Meanwhile,chamfering will make the main flow translocation with the lateral branch in dry season,and decrease the discharge diverting ratio of the Songzihe River(an important tributary of the Yangtze River in this reach)from the Yangtze River,etc However,the extra descendent of water stage of the upper reach resulted by the chamfering may foreclose the normal navigation condition of the Gezhouba Ship Lock,etc. |
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| Keywords: | shallow reach river patteren chamfering navigation channel training alluvial process Yangtze River Lujiahe |
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