Slope debris flows in the Wenchuan Earthquake area
文献类型：期刊论文
| 作者 | Li Yanfu ; Wang Zhaoyin ; Shi Wenjing ; Wang Xuzhao |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2010-09 |
| 卷号 | 7期号:3页码:226–233 |
| 关键词 | Slope debris flow rainfall intensity Wenchuan Earthquake landslide avalanche |
| ISSN号 | 1672-6316 |
| 通讯作者 | Wang, ZY |
| 英文摘要 | Avalanches and landslides, induced by the Wenchuan Earthquake on May 12, 2008, resulted in a lot of disaggregated, solid material on slopes that could be readily mobilized as source material for debris flows. Rainstorms triggered numerous slope debris flows with great damage to highways and rivers over the subsequent two years. Slope debris flows (as opposed to channelized debris flows) are defined as phenomena in which high-concentration mixtures of debris and water flow down slopes for short distances to highways and river banks. Based on field investigations and measurements of 19 slope debris flows, their main characteristics and potential mitigation strategies were studied. High rainfall intensity is the main triggering factor. Critical rainfall intensities for simultaneous occurrence of single, several and numerous slope debris flow events were 20 mm/day, 30mm/day, and 90 mm/day, respectively. Field investigations also revealed that slope debris flows consist of high concentrations of cobbles, boulders and gravel. They are two-phase debris flows. The liquid phase plays the role of lubrication instead of transporting medium. Solid particles collide with each other and consume a lot of energy. The velocities of slope debris flows are very low, and their transport distances are only several tens of meters. Slope debris flows may be controlled by construction of drainage systems and by reforestation. |
| 语种 | 英语 |
| 公开日期 | 2013-08-12 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5898]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2010_Vol7 No.3 |
| 推荐引用方式 GB/T 7714 | Li Yanfu,Wang Zhaoyin,Shi Wenjing,et al. Slope debris flows in the Wenchuan Earthquake area[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(3):226–233. |
| APA | Li Yanfu,Wang Zhaoyin,Shi Wenjing,&Wang Xuzhao.(2010).Slope debris flows in the Wenchuan Earthquake area.JOURNAL OF MOUNTAIN SCIENCE,7(3),226–233. |
| MLA | Li Yanfu,et al."Slope debris flows in the Wenchuan Earthquake area".JOURNAL OF MOUNTAIN SCIENCE 7.3(2010):226–233. |
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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