Landslide dynamic process and parameter sensitivity analysis by discrete element method:the case of Turnoff Creek rock avalanche
文献类型：期刊论文
| 作者 | An Huicong2; Ouyang Chaojun2 ; Zhao Chuan3; Zhao Wei2
|
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2020 |
| 卷号 | 17期号:7页码:1581-1595 |
| 关键词 | Discrete element method Contact model Numerical modeling Rock avalanche Geological hazard assessment Parameter analysis |
| ISSN号 | 1672-6316 |
| 英文摘要 | The great diversity and complexity of geological hazards in terms of flowing materials, environment, triggering mechanisms and physical processes during the flow bring great difficulties to the numerical parameter selection for the discrete element method.In order to identity the significance of individual parameters on the landslides dynamic process and provide valuable contribution to the runout analysis of similar landslide, the dynamic process and associated microscopic mechanism of the Turnoff Creek rock avalanche in Canada are simulated.The present numerical results are compared with the field survey data and the results of depth-integrated continuum method.The final deposit range matches well with the field survey data.It is illustrated that the discrete element method is robust and feasible to capture the dynamic characteristics of large rock avalanche over a complex terrain.Besides, a new method to assess the landslide hazard level based on the discrete element method is proposed.According to the parameter sensitivity analysis, it is demonstrated that the basal friction coefficient and bond strength are essential to the final deposit while rolling coefficient and restitution coefficient have little effects on it. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6756215 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/50199]  |
| 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 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
| 作者单位 | 1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences 2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences 3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences 4.Sichuan Academy of Water Conservancy |
| 推荐引用方式 GB/T 7714 | An Huicong,Ouyang Chaojun,Zhao Chuan,et al. Landslide dynamic process and parameter sensitivity analysis by discrete element method:the case of Turnoff Creek rock avalanche[J]. Journal of Mountain Science,2020,17(7):1581-1595. |
| APA | An Huicong,Ouyang Chaojun,Zhao Chuan,&Zhao Wei.(2020).Landslide dynamic process and parameter sensitivity analysis by discrete element method:the case of Turnoff Creek rock avalanche.Journal of Mountain Science,17(7),1581-1595. |
| MLA | An Huicong,et al."Landslide dynamic process and parameter sensitivity analysis by discrete element method:the case of Turnoff Creek rock avalanche".Journal of Mountain Science 17.7(2020):1581-1595. |
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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