| 泥石流入汇主河淤积规律的水槽试验研究 |
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| 引用本文： | 敖汝庄 郭志学 曹叔尤. 泥石流入汇主河淤积规律的水槽试验研究[J]. 水土保持学报, 2004, 18(4): 196-199 |
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| 作者姓名： | 敖汝庄 郭志学 曹叔尤 |
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| 作者单位： | 四川大学,高速水力学国家重点实验室,成都,610065 |
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| 基金项目： | 教育部科学技术研究重点项目(2003-58)，自然基金重点课题(49831010) |
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| 摘 要： | 以试验为基础,研究了泥石流入汇主河后淤积规律,主要探讨了淤积量及淤积分布问题。通过试验分析认为,泥石流入汇主河后的淤积量基本随流量比的增大而增大,就其淤积速率而言,有先增大后减小的变化规律。淤积量在流量比大约为0.5时出现峰值,在流量比为0.65时出现谷值,淤积量与流量比关系变化曲线以倾斜向上的直线为对称轴,呈倾斜向上的正弦波形。各工况下淤积范围基本不变,但试验中反映出,淤积范围有随交汇角增大而增大的趋势。
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| 关 键 词： | 泥石流 交汇 淤积量 淤积深度 流量比 交汇角 |
| 文章编号： | 1009-2242(2004)04-0196-04 |
Flume Experiment Study on Deposit Principle of Debris Flow when Debris Flow Confluence with Main River |
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| AO Ru-zhuang,GUO Zhi-xue,CAO Shu-you. Flume Experiment Study on Deposit Principle of Debris Flow when Debris Flow Confluence with Main River[J]. Journal of Soil and Water Conservation, 2004, 18(4): 196-199 |
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| Authors: | AO Ru-zhuang GUO Zhi-xue CAO Shu-you |
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| Abstract: | Based on the experiment, deposit principle of debris flow when it confluence with the main river is studied. Deposit quantity and region is analyzed. According to the experiment, deposit quantity will increase with the increasing of discharge ratio. As deposit speed is considered, it will be first up then down. Deposit quantity will get the maximum value at discharge ratio of 0.5 and get minimum value at 0.65. The curve (relation between deposit quantity and discharge ratio) will be an uphill sinusoid. Deposit region will change little in all experiment conditions. As shown in the experiment, deposit region may expand with the increasing of the confluence angle. |
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| Keywords: | debris flow confluence deposit volume deposit depth discharge ratio confluence angle |
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