A catastrophic landslide triggered debris flow in China's Yigong: factors, dynamic processes, and tendency
文献类型：期刊论文
| 作者 | Li Jun1; Chen Ningsheng2 ; Zhao Yuandi1; Liu Mei2; Wang Weiyu1
|
| 刊名 | EARTH SCIENCES RESEARCH JOURNAL
 |
| 出版日期 | 2020 |
| 卷号 | 24期号:1页码:71-82 |
| 关键词 | Catastrophic landslide triggered debris flow Dynamic process Main controlling factors Tendency analysis Yigong |
| ISSN号 | 1794-6190 |
| DOI | 10.15446/esrj.v24n1.78094 |
| 产权排序 | 2 |
| 通讯作者 | Chen, Ningsheng(chennsh@imde.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | A disaster of a catastrophic landslide triggered a debris flow with a scale of 0.3 billion m3 that occurred in the Zhamunong gully of Yigong on April 9th, 2000. It is of great scientific and engineering significance to study the main controlling factors and dynamic processes of this disaster, and the future development trend of similar hazards. Firstly, the precipitation, earthquake and temperature data before the event and seismic wave data after the event were collect. Secondly, a multi-dimensional approach on the data for finding the factors, dynamic processes and tendency of a catastrophic landslide triggered a debris flow in Zhamunong gully was applied, including the standard precipitation index and effective peak acceleration calculation methods, fast Fourier transform, landslide stability, MacCormackTVD finite difference method and FLAC numerical simulation method. The results are shown as follows. (1) The main controlling factors of this disaster were the long-term freeze-thaw cycle, dry-wet cycle, and a middle magnitude earthquake. (2) Based on the ground vibration spectrum of 2000 disaster recorded by the Linzhi seismic station, the dynamic processes are the joint and crack development process, the crack fracture and sliding process, the landslide translating into the debris flow, the movement and deposition of the debris flow. (3) The density and the average velocity are 2.0 t.m(-3) and 30.12 m.s(-1), respectively, and the discharge is shown with the process of first increases and then decreases. (4) Similar catastrophic landslide triggered debris flow would happen in Zhamunong gully in the future. The research results are useful in establishing a foundation for further study on the dynamic mechanism and reduction countermeasures of a catastrophic landslide triggered by debris flow. |
| 电子版国际标准刊号 | 2339-3459 |
| WOS关键词 | TIBETAN PLATEAU ; MOVEMENT ; DISASTER ; FAILURE ; IMPACTS ; VALLEY ; RIVER ; SOIL |
| 资助项目 | National Natural Science Foundation of China[41807075] ; National Natural Science Foundation of China[41671112] ; National Natural Science Foundation of China[41861134008] ; talent introduction project of Sichuan University of Science Engineering[2018RCL09] ; student's innovation and entrepreneurship training program of Sichuan University of Science Engineering[B50104124] ; opening project of Sichuan Province University Key Laboratory of Bridge Non-destruction Detecting and Engineering Computing[2019QZJ01] ; Zigong Bureau of Science and Technology[2019CXMZ08] ; Zigong Bureau of Science and Technology[2019YYJC30] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000522730800008 |
| 出版者 | UNIV NACIONAL DE COLOMBIA |
| 资助机构 | National Natural Science Foundation of China ; talent introduction project of Sichuan University of Science Engineering ; student's innovation and entrepreneurship training program of Sichuan University of Science Engineering ; opening project of Sichuan Province University Key Laboratory of Bridge Non-destruction Detecting and Engineering Computing ; Zigong Bureau of Science and Technology |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34130]  |
| 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 | Chen Ningsheng |
| 作者单位 | 1.School of Civil Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China; 2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China |
| 推荐引用方式 GB/T 7714 | Li Jun,Chen Ningsheng,Zhao Yuandi,et al. A catastrophic landslide triggered debris flow in China's Yigong: factors, dynamic processes, and tendency[J]. EARTH SCIENCES RESEARCH JOURNAL,2020,24(1):71-82. |
| APA | Li Jun,Chen Ningsheng,Zhao Yuandi,Liu Mei,&Wang Weiyu.(2020).A catastrophic landslide triggered debris flow in China's Yigong: factors, dynamic processes, and tendency.EARTH SCIENCES RESEARCH JOURNAL,24(1),71-82. |
| MLA | Li Jun,et al."A catastrophic landslide triggered debris flow in China's Yigong: factors, dynamic processes, and tendency".EARTH SCIENCES RESEARCH JOURNAL 24.1(2020):71-82. |
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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