Kinetic Friction Coefficient and Mass Movement Process of Large Rock Avalanches Triggered by the Wenchuan Earthquake
文献类型：会议论文
| 作者 | Zhiman Su
|
| 出版日期 | 2013 |
| 会议名称 | International Symposium on Earthquake-Induced Landslides, Kiryu, Japan, 2012 |
| 会议日期 | November 7-9, 2012 |
| 会议地点 | Kiryu, Japan |
| 关键词 | Rock avalanches Wenchuan earthquake Mass movement Energy conservation Kinetic friction coefficient Landslide velocity |
| 页码 | 521-528 |
| 通讯作者 | Jiawen Zhou |
| 英文摘要 | Kinetic friction coefficient and mass movement process of large rock avalanches are very important to understand the dynamic mechanical characteristics during the sliding process. This paper presents a simple slab model based on energy conservation to determining the kinetic friction coefficient and sliding velocity during the mass movement process. The rock avalanche is assumed as a rigid, non-deformable object moving down slope and subject to the sole Coulomb friction for the presented slab model, and the kinetic friction coefficient is assumed as a certain value during the mass movement process. Five large rock avalanches triggered by the Wenchuan earthquake are selected as the case study examples, and simplified to two stages for these rock avalanches: acceleration stage and accumulation stage, the kinetic friction coefficient and sliding velocity are back analysed by the presented simple slab model. Computed results show that, the kinetic friction coefficient for Donghekou, Woqian, Wenjiagou, Niumiangou and Xiejiadianzi rock avalanches are 0.235, 0.229, 0,306, 0,243 and 0.279, respectively; and the maximum sliding velocity are about 63 m/s, 59 m/s, 64 m/s, 67 m/s and 60 m/s, respectively. |
| 收录类别 | 其他 |
| 会议主办者 | Keizo Ugai ; Hiroshi Yagi ; Akihiko Wakai |
| 会议录 | Earthquake-Induced Landslides: Proceedings of the International Symposium on Earthquake-Induced Landslides, Kiryu, Japan, 2012
 |
| 语种 | 英语 |
| ISBN号 | 978-3-642-32237-2 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6621]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Zhiman Su. Kinetic Friction Coefficient and Mass Movement Process of Large Rock Avalanches Triggered by the Wenchuan Earthquake[C]. 见:International Symposium on Earthquake-Induced Landslides, Kiryu, Japan, 2012. Kiryu, Japan. November 7-9, 2012. |
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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