Damming of Large River by Debris Flow: Dynamic Process and Particle Composition
文献类型：期刊论文
| 作者 | DU Cui ; YAO Ling-kan ; SHAKYA Subhashsagar ; LI Lun-gui ; SUN Xiao-dan |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-05 |
| 卷号 | 11期号:3页码:634-643 |
| 关键词 | Debris flow Damming large river Criteria Run-out distance Grain composition |
| 通讯作者 | YAO Ling-kan |
| 英文摘要 | The frequency and extent of debris flows have increased tremendously due to the extreme weather and the Wenchuan earthquake on May 12, 2008. Previous studies focused on the debris flow from gullies damming the mountain streams. In this paper, an equation for the run-out distance of debris flow in the main river is proposed based on the dynamic equation of debris flow at different slopes given by Takahashi. By undertaking field investigations and flume experiments, a new calculation method of the volume of debris flow damming large river is obtained. Using the percolation theory and the renormalization group theory it was deduced that the large particles should comprise more than 50% for forming a stable debris flow dam. Hence, the criteria of damming large river by debris flow is presented in terms of run-out distance and grain composition which was then validated through the event of damming river by debris flow at Gaojia gully, the upper reaches of the Minjiang River, Sichuan, China, on July 3, 2011. |
| 收录类别 | SCI |
| 公开日期 | 2014-05-06 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6893]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.3 |
| 推荐引用方式 GB/T 7714 | DU Cui,YAO Ling-kan,SHAKYA Subhashsagar,et al. Damming of Large River by Debris Flow: Dynamic Process and Particle Composition[J]. Journal of Mountain Science,2014,11(3):634-643. |
| APA | DU Cui,YAO Ling-kan,SHAKYA Subhashsagar,LI Lun-gui,&SUN Xiao-dan.(2014).Damming of Large River by Debris Flow: Dynamic Process and Particle Composition.Journal of Mountain Science,11(3),634-643. |
| MLA | DU Cui,et al."Damming of Large River by Debris Flow: Dynamic Process and Particle Composition".Journal of Mountain Science 11.3(2014):634-643. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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