| 三峡蓄水后宜昌断面枯水位下降趋势及应对策略分析 |
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| 引用本文： | 陈立,许文盛,何小花,韩飞.三峡蓄水后宜昌断面枯水位下降趋势及应对策略分析[J].水运工程,2006(5):59-64,73. |
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| 作者姓名： | 陈立 许文盛 何小花 韩飞 |
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| 作者单位： | 1. 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
2. 长江航道局,湖北,武汉,430072 |
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| 基金项目： | 国家研究发展基金;国家高技术研究发展计划(863计划);湖北省创新群体基金;高等学校博士学科点专项科研项目 |
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| 摘 要： | 宜昌断面的枯水水位是反映葛洲坝船闸通航条件的特征参数。自葛洲坝修建以来，宜昌断面枯水位明显下降。三峡蓄水以后，宜昌断面的来沙量降低，河床发生冲刷调整，枯水位将发生相应变化。依据实测资料，对三峡蓄水运用初期宜昌至虎牙滩河段的冲刷特性、宜昌枯水位的变化、影响宜昌断面枯水位的因素以及下降趋势进行了分析，初步探讨了应对宜昌水位下降的策略。
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| 关 键 词： | 三峡 葛洲坝 宜昌断面 枯水位 |
| 文章编号： | 1002-4972（2006）05-0059-06 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2005-12-20 |
Low Water Level Descending Trend of Yichang Section After Water Storing of Three Gorges and It's Solution |
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| CHEN Li,XU Wen-sheng,HE Xiao-hua,HAN Fei.Low Water Level Descending Trend of Yichang Section After Water Storing of Three Gorges and It''''s Solution[J].Port & Waterway Engineering,2006(5):59-64,73. |
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| Authors: | CHEN Li XU Wen-sheng HE Xiao-hua HAN Fei |
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| Institution: | 1. State Key Lab of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; 2. Changjiang Waterway Bureau, Wuhan 430072, China |
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| Abstract: | The low water level of Yichang Section is a characteristic parameter which reflects the navigation condition of Gezhouba ship locks. It has descended obviously since the construction of Gezhouba. The low water level will change accordingly with the reduction of coming sediment at Yichang section and variation of bed scouring after water storing of the Three Gorges. Based on the real data, this paper analyzes the erosional characteristics of the river reach from Yichang to Huyatan, variation of low water level of Yichang, factors influencing the low water level of Yichang section and the descending trend. Besides, it discusses the solutions to counter the drop of low water level in Yichang. |
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| Keywords: | Three Gorges Gezhouba Yichang Section low water level |
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