Experimental study on cascading landslide dam failures by upstream flows
文献类型：期刊论文
| 作者 | Zhou, Gordon G. D.1,2,3 ; Cui, P.1,2,3; Chen, H. Y.1,2,3; Zhu, X. H.1,2,3; Tang, J. B.1,2,3; Sun, Q. C.4
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| 刊名 | LANDSLIDES
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| 出版日期 | 2013-10-01 |
| 卷号 | 10期号:5页码:633-643 |
| 关键词 | Cascading failure Landslide dam Upstream flow Scale amplification |
| ISSN号 | 1612-510X |
| 通讯作者 | 崔鹏 |
| 合作状况 | 国内 |
| 英文摘要 | Landslide dams in mountainous areas are quite common. Typically, intense rainfalls can induce upstream flows along the sloping channel, which greatly affects the stability and failure modes of landslide dams. If a series of landslide dams are sequentially collapsed by an incoming mountain torrent (induced by intense rainfall), large debris flows can be formed in a short period of time. This also amplifies the magnitude of the debris flows along the flow direction. The catastrophic debris flows, which occurred in Zhouqu, China on August 8, 2010, were indeed caused by intense rainfall and the upstream cascading failure of landslide dams along the gullies. Experimental tests were conducted in a sloping channel to understand the dynamic process of cascading landslide dam failures and their effect on flow scale amplification. Similar to the Zhouqu conditions, the modeled landslide dams were distributed along a sloping channel and breached by different upstream flows. For each experiment, the front flows were sampled, the entrained grain sizes were analyzed, and the front discharge along the channel was measured. The results of these experiments show that landslide dams occurring along the channel can be destroyed by both high and low discharge flows, although the mechanisms are quite different for the two flow types. Regardless of flow type, the magnitude of the flows significantly increases after a cascading failure of landslide dams, resulting in an increase in both the diameter and the entrained coarse particles percentage. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 学科主题 | 灾害学 |
| 类目[WOS] | Engineering, Geological ; Geosciences, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Geology |
| 关键词[WOS] | EARTHQUAKE-INDUCED LANDSLIDES ; NEW-ZEALAND ; HAZARD ASSESSMENT ; DEBRIS FLOW ; HSIAOLIN VILLAGE ; MOUNTAIN BELT ; SEDIMENT FLUX ; SOUTHERN ALPS ; TAIWAN ; BREACH |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000325115700008 |
| 公开日期 | 2012-12-10 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4396]  |
| 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, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 3.Minist Water Conservancy & Power, Chengdu, Peoples R China 4.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Gordon G. D.,Cui, P.,Chen, H. Y.,et al. Experimental study on cascading landslide dam failures by upstream flows[J]. LANDSLIDES,2013,10(5):633-643. |
| APA | Zhou, Gordon G. D.,Cui, P.,Chen, H. Y.,Zhu, X. H.,Tang, J. B.,&Sun, Q. C..(2013).Experimental study on cascading landslide dam failures by upstream flows.LANDSLIDES,10(5),633-643. |
| MLA | Zhou, Gordon G. D.,et al."Experimental study on cascading landslide dam failures by upstream flows".LANDSLIDES 10.5(2013):633-643. |
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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