Debris flows introduced in landslide deposits under rainfall conditions: The case of Wenjiagou gully
文献类型：期刊论文
| 作者 | Zhou Jia-wen1,2; Cui Peng1 ; Yang Xing-guo2; Su Zhi-man1; Guo Xiao-jun1
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| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2013-04-01 |
| 卷号 | 10期号:2页码:249-260 |
| 关键词 | Debris flow Rainfall Surface-water runoff Unsaturated seepage Physical modeling Numerical modeling |
| ISSN号 | 1672-6316 |
| 通讯作者 | ZHOU Jia-wen |
| 英文摘要 | Debris flows often occur in landslide deposits during heavy rainstorms. Debris flows are initiated by surface water runoff and unsaturated seepage under rainfall conditions. A physical model based on an infinitely long, uniform and void-rich sediment layer was applied to analyze the triggering of debris-flow introduced in landslide deposits. To determine the initiation condition for rainfall-induced debris flows, we conducted a surface water runoff and saturated-unsaturated seepage numerical program to model rainfall infiltration and runoff on a slope. This program was combined with physical modeling and stability analysis to make certain the initiation condition for rainfall-introduced debris flows. Taking the landslide deposits at Wenjiagou gully as an example, the initiation conditions for debris flow were computed. The results show that increase height of surface-water runoff and the decrease of saturated sediment shear strength of are the main reasons for triggering debris-flows under heavy rainfall conditions. The debris-flow triggering is affected by the depth of surface-water runoff, the slope saturation and shear strength of the sediment. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | RATES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317352800008 |
| 公开日期 | 2013-04-26 |
| 源URL | [http://192.168.143.20:8080/handle/131551/5215]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.2 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.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Jia-wen,Cui Peng,Yang Xing-guo,et al. Debris flows introduced in landslide deposits under rainfall conditions: The case of Wenjiagou gully[J]. JOURNAL OF MOUNTAIN SCIENCE,2013,10(2):249-260. |
| APA | Zhou Jia-wen,Cui Peng,Yang Xing-guo,Su Zhi-man,&Guo Xiao-jun.(2013).Debris flows introduced in landslide deposits under rainfall conditions: The case of Wenjiagou gully.JOURNAL OF MOUNTAIN SCIENCE,10(2),249-260. |
| MLA | Zhou Jia-wen,et al."Debris flows introduced in landslide deposits under rainfall conditions: The case of Wenjiagou gully".JOURNAL OF MOUNTAIN SCIENCE 10.2(2013):249-260. |
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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