| 长江中游典型分汊河段河床演变 |
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| 引用本文： | 刘万利,伍文俊,余新明. 长江中游典型分汊河段河床演变[J]. 武汉大学学报(工学版), 2011, 44(5): 613-617 |
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| 作者姓名： | 刘万利 伍文俊 余新明 |
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| 作者单位： | 1. 清华大学水利水电工程系水沙科学与水利水电工程国家重点实验室,北京100084／交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456
2. 长江航道局,湖北武汉,430010 |
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| 基金项目： | 西部交通建设科技项目(编号:200832822439) |
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| 摘 要： | 戴家洲河段来水来沙特点分析表明,本河段具有明显的平原河流特征,水流易受地形影响,河段年际间来水来沙存在较大的变化,来沙以流域产沙为主,河段内造床起主导作用的是悬移质泥沙运动.河段演变特点主要表现为:洪水河势基本稳定而中低水滩地则冲淤变化不定,池湖港心滩基本稳定,巴河边滩发育和冲蚀交替,戴家洲洲头不断变化,直港直水道和微弯水道特征不断转化交替,巴河边滩的消长、戴家洲洲头的进退和直港滩槽演变密切相关,戴家洲直港浅滩位置多变且呈洪淤枯冲规律.结合三峡水利枢纽的蓄水运用,对戴家洲河段河床演变趋势进行了预估.
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| 关 键 词： | 来水来沙 河床演变 趋势预测 |
Alluvial process analysis of typical braided reach in middle reaches of Yangtze River |
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| LIU Wanli,,WU Wenjun,YU Xinming. Alluvial process analysis of typical braided reach in middle reaches of Yangtze River[J]. Engineering Journal of Wuhan University, 2011, 44(5): 613-617 |
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| Authors: | LIU Wanli WU Wenjun YU Xinming |
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| Affiliation: | LIU Wanli1,2,WU Wenjun3,YU Xinming3(1.State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China,2.Key Laboratory of Engineering Sediment of Ministry of Communications,Tianjin Research Institute for WaterTransport Engineering,Tianjin 300456,3.Changjiang Waterway Bureau,Wuhan 430010,China) |
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| Abstract: | The characters of runoff and sediment of Daijiazhou reach in middle reaches of the Yangtze river is analyzed.It is shown that the plain river characteristics of Daijiazhou reach is obvious.The runoff and sediment between the years vary largely.The suspended load plays an important role in alluvial process.The characters of river evolution are as follows: the flood river regime is stable whereas the low-water riverbed is unstable;the Chihugang shoal is basically stable;the deposition and erosion of Bahe poin... |
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| Keywords: | runoff and sediment alluvial process trend prediction |
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