| 支流水沙作用下干流床面冲淤特征试验研究 |
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| 引用本文： | 刘同宦,王协康,郭炜,刘兴年,王宪业.支流水沙作用下干流床面冲淤特征试验研究[J].长江科学院院报,2006,23(2):9-12. |
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| 作者姓名： | 刘同宦 王协康 郭炜 刘兴年 王宪业 |
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| 作者单位： | 长江科学院,河流研究所,武汉,430010;四川大学,水力学与山区河流开发保护国家重点实验室,成都,610065 |
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| 摘 要： | 通过一系列的水槽试验，研究了交汇角为30°时不同水沙条件下干流床面冲淤特性，获得了在支流有无来水、来沙时不同主支汇流比下的干流床面冲淤二维等值线图，初步揭示了干流床面冲淤随主支流量比及支流是否来沙的变化特性。研究成果对了解交汇区的冲淤变化及河床演变具有积极的作用。
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| 关 键 词： | 交汇 床面冲淤 汇流比 |
| 文章编号： | 1001-5485（2006）02-0009-04 |
| 收稿时间： | 2005-06-09 |
| 修稿时间： | 2005-06-09 |
Experimental Study on Bed Morphology at Channel Confluence with Tributary Action |
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| LIU Tong-Huan,WANG Xie-kang,GUO Wei,LIU Xing-nian,WANG Xian-ye.Experimental Study on Bed Morphology at Channel Confluence with Tributary Action[J].Journal of Yangtze River Scientific Research Institute,2006,23(2):9-12. |
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| Authors: | LIU Tong-Huan WANG Xie-kang GUO Wei LIU Xing-nian WANG Xian-ye |
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| Abstract: | There are complex interrelationships and internal mechanisms among bed form,sediment transport and flow structure in natural river,in particular in confluent river.The experiments were conducted in flume including different cases,e.g.,without branch flow,branch flow with clear-water,branch flow with both water and sediment.The stable bed morphology in every case was measured and analyzed with different discharge ratios q~* of the branch channel flow Q_b to combined tail-water flow Q_t.The characteristics of variation of bed morphology of main channel under above-mentioned cases were revealed. |
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| Keywords: | confluence bed morphology discharge ratio |
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