Experimental study on the triggering mechanisms and kinematic properties of large debris flows in Wenjia Gully
文献类型：期刊论文
| 作者 | Zhou, Gordon G. D.1,2,3 ; Cui, R.1,2,3; Tang, J. B.1,2,3; Chen, H. Y.1,2,3; Zou, Q.4; Sun, Q. C.5
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| 刊名 | ENGINEERING GEOLOGY
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| 出版日期 | 2015-08-26 |
| 卷号 | 194页码:52-61 |
| ISSN号 | 0013-7952 |
| 关键词 | Debris flow Erosion Landslide dam Wenjia Gully |
| 通讯作者 | Zhou GD |
| 英文摘要 | Debris flows are typically caused by natural terrain landslides triggered by intense rainfalls. If an incoming mountain torrent flows along sloping channels at high velocity, huge amounts of sediment (from landslide dams and eroded channel beds) will be entrained into the flows to form debris flows. It is likely that large debris flows are due to the failure of many landslide dams of different scales (due to bank slides or collapses), bed erosion, and solid transport. The catastrophic debris flows that occurred in Wenjia Gully (Wenchuan Earthquake Area), China on August 13, 2010 (two years after the mega earthquake), were caused by intense rainfall and the serious erosion of sloping channels. In the wake of the incident, experimental tests were conducted to better understand the process of sediment erosion and entrainment on the channel bed and the formation of debris flows. The results show that the bed erosion, bank collapses and channel widening caused by erosion accounted for the triggering and scale amplification of downstream debris flows in the Wenjia Gully event. This study illustrates how the hazardous process of natural debris flows can begin several kilometers upstream, and how such a complex cascade of geomorphic events (failure of landslide dams and erosion of the sloping bed) can lead to catastrophic discharges. Neglecting recognition of these hazardous geomorphic and hydrodynamic processes may result in high cost. (C) 2014 Elsevier B.V. All rights reserved. |
| 学科主题 | 灾害学 |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Geological ; Geosciences, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Geology |
| 关键词[WOS] | LANDSLIDE DAM ; CHANNEL ; HYDRAULICS ; CHINA ; EARTHQUAKE ; GEOMETRY ; FAILURE ; SICHUAN ; DEPTH ; JAPAN |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S001379521400283X# |
| 语种 | 英语 |
| WOS记录号 | WOS:000360416400006 |
| 公开日期 | 2014-12-10 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7535]  |
| 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.Southwest Univ Sci & Technol, Coll Environm & Resource, Beijing, Peoples R China 5.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, R.,Tang, J. B.,et al. Experimental study on the triggering mechanisms and kinematic properties of large debris flows in Wenjia Gully[J]. ENGINEERING GEOLOGY,2015,194:52-61. |
| APA | Zhou, Gordon G. D.,Cui, R.,Tang, J. B.,Chen, H. Y.,Zou, Q.,&Sun, Q. C..(2015).Experimental study on the triggering mechanisms and kinematic properties of large debris flows in Wenjia Gully.ENGINEERING GEOLOGY,194,52-61. |
| MLA | Zhou, Gordon G. D.,et al."Experimental study on the triggering mechanisms and kinematic properties of large debris flows in Wenjia Gully".ENGINEERING GEOLOGY 194(2015):52-61. |
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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