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 Huicong2,3; Ouyang Chaojun1,2,3; Zhao Chuan4; Zhao Wei2,3 |
| 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 |
| DOI | 10.1007/s00442-020-04733-6 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 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. |
| 电子版国际标准刊号 | 1432-1939 |
| 语种 | 英语 |
| WOS记录号 | WOS:000561231600001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35253]  |
| 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 |
| 通讯作者 | Ouyang Chaojun |
| 作者单位 | 1.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China; 2.Key Laboratory of Mountain Hazards and Earth Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 3.University of Chinese Academy of Sciences, Beijing 100049, China; 4.Sichuan Academy of Water Conservancy, Chengdu 610072, China |
| 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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