Experimental study of debris flow caused by domino failures of landslide dams
文献类型：期刊论文
| 作者 | Chen, Hua-Yong1,2 ; Cui, Peng1,2; Zhou, Gordon G. D.1,2; Zhu, Xing-Hua1,2; Tang, Jin-Bo1,2
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| 刊名 | INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 29期号:3页码:414-422 |
| 关键词 | Debris flow Landslide dams Domino failures Enlargement of debris flow Mean velocity |
| ISSN号 | 1001-6279 |
| 通讯作者 | Peng CUI |
| 英文摘要 | The formation of landslide dams is often induced by earthquakes in mountainous areas. The failure of a landslide dam typically results in catastrophic flash floods or debris flows downstream. Significant attention has been given to the processes and mechanisms involved in the failure of individual landslide dams. However, the processes leading to domino failures of multiple landslide dams remain unclear. In this study, experimental tests were carried out to investigate the domino failure of landslide dams and the consequent enlargement of downstream debris flows. Different blockage conditions were considered, including complete blockage, partial blockage and erodible bed (no blockage). The mean velocity of the flow front was estimated by videos. Total stress transducers (TSTs) and Laser range finders (LRFs) were employed to measure the total stress and the depth of the flow front, respectively. Under a complete blockage pattern, a portion of the debris flow was trapped in front of each retained landslide dam before the latter collapsed completely. This was accompanied by a dramatic decrease in the mean velocity of the flow front. Conversely, under both partial blockage and erodible bed conditions, the mean velocity of the flow front increased gradually downward along the sloping channel. Domino failures of the landslide dams were triggered when a series of dams (complete blockage and partial blockage) were distributed along the flume. However, not all of these domino failures led to enlarged debris flows. The modes of dam failures have significant impacts on the enlargement of debris flows. Therefore, further research is necessary to understand the mechanisms of domino failures of landslide dams and their effects on the enlargement of debris flows. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 学科主题 | 灾害学 |
| 类目[WOS] | Environmental Sciences ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Water Resources |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S100162791460055X |
| 语种 | 英语 |
| WOS记录号 | WOS:000342801700011 |
| 公开日期 | 2014-12-11 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7540]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Hua-Yong,Cui, Peng,Zhou, Gordon G. D.,et al. Experimental study of debris flow caused by domino failures of landslide dams[J]. INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2014,29(3):414-422. |
| APA | Chen, Hua-Yong,Cui, Peng,Zhou, Gordon G. D.,Zhu, Xing-Hua,&Tang, Jin-Bo.(2014).Experimental study of debris flow caused by domino failures of landslide dams.INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,29(3),414-422. |
| MLA | Chen, Hua-Yong,et al."Experimental study of debris flow caused by domino failures of landslide dams".INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH 29.3(2014):414-422. |
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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