| 长江中游戴家洲河段天然水流特性试验研究 |
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| 引用本文： | 刘万利,李旺生,朱玉德,崔喜凤,邢顺敬.长江中游戴家洲河段天然水流特性试验研究[J].水道港口,2009,30(2):113-118. |
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| 作者姓名： | 刘万利 李旺生 朱玉德 崔喜凤 邢顺敬 |
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| 作者单位： | 1. 交通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;武汉大学,水资源与水电工程国家重点实验室,武汉,430072
2. 交通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 |
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| 摘 要： | 文章对长江中游戴家洲河段的来水来沙特点进行了分析。通过实体模型试验,对该河段水流动力轴线的位置、戴家洲洲头局部流态、分汇流点的位置以及各级流量下断面平均水深、断面平均流速进行了深入分析,对各级流量下的比降、分流比进行了研究,并对两汊平均流速、平均水深,涨、落水期的水深、流速、比降等进行了比较,以加深对河段水流运动规律的认识,同时为工程方案整治效果的分析比较打下基础。
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| 关 键 词： | 分汊 水深 流速 比降 分流比 水流特性 |
Study on flow characteristics of braided reach of Daijiazhou reach in Middle Yangtze River |
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| LIU Wan-li,LI Wang-sheng,ZHU Yu-de,CUI Xi-feng,XING Shun-jing.Study on flow characteristics of braided reach of Daijiazhou reach in Middle Yangtze River[J].Journal of Waterway and Harbour,2009,30(2):113-118. |
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| Authors: | LIU Wan-li LI Wang-sheng ZHU Yu-de CUI Xi-feng XING Shun-jing |
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| Institution: | 1.Tianjin Research Institute for Water Transport Engineering;Key Laboratory of Engineering Sediment of Ministry of Communications;Tianjin 300456;China;2.State Key Laboratory of Water Resources and Hydropower Engineering Science;Wuhan University;Wuhan 430072;China |
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| Abstract: | The characters of incoming water and sediment of Daijiazhou reach in Middle Yangtze River were analyzed.According to the experimental data of physical model,the position of flow hydrodynamic axis,the local flow condition of Daijiazhou sandbar,the position of bifurcation and confluence,the mean water depth in section,and the mean velocity in section under various discharges were investigated.The surface slope and discharge ratio under various discharges were analyzed.The mean velocity,mean depth and mean sur... |
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| Keywords: | braided channel water depth velocity surface slope discharge ratio flow characteristic |
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