Dynamic Process and Mechanism of the Catastrophic Taihongcun Landslide Triggered by the 2008 Wenchuan Earthquake Based on Field Investigations and Discrete Element Method Simulations
文献类型：期刊论文
| 作者 | Zhou, Xingtao1,2; Wei, Pengfei2; Fu, Xiaodong3; Li, Lihua2; Xue, Xiaohui4,5 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2021-08-02 |
| 卷号 | 9页码:19 |
| 关键词 | Taihongcun landslide field investigation discrete element method dynamic process formation mechanism |
| DOI | 10.3389/feart.2021.710031 |
| 英文摘要 | The Taihongcun landslide, which was a remarkable geological disaster triggered by the 2008 Wenchuan earthquake, had a volume of about 2 x 106 m(3) and killed about 23 people. Through detailed field investigations, basic information of topography, geological structure and stratigraphy for the landslide were acquired and key kinetic characteristics of the landslide were identified. On the basis of filed investigations, 2D numerical models with discrete element method (DEM) were established to simulate the kinematics and failure process of the landslide. To ensure the validity of the dynamic calculations, the free-field boundary condition was developed and introduced intro the DEM models. According to filed investigations and DEM simulations, the dynamic processes of the Taihongcun landslide can be divided into four phases: fragmentation, projection motion, scraping, and granular debris flow and accumulation. In addition, the parameter analysis showed that the particle bond strength had a significant influence on the runout distance and landslide debris morphology. Finally, the possible mechanism of the Taihongcun landslide was determined: a rock mass of poor quality provided the lithological basis for this landslide formation; a joint set J(1) in the back scarp and a weak interlayer of carbonaceous slate and shale between the upper sliding mass and the bedrock formed the rupture boundaries of the upper source area; a strong seismic ground motion was the external excitation that triggered the destructive landslide event; additionally, hypermobility was caused by the high elevation and topographical conditions of the landslide. |
| 资助项目 | National Basic Research Program of China[2015CB057905] ; National Natural Science Foundation of China[51779253] ; National Natural Science Foundation of China[41672319] ; National Key Ramp;D Program of China[2016YFC0401803] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000685073600001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27672]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Fu, Xiaodong |
| 作者单位 | 1.Hubei Univ Arts & Sci, Sch Civil Engn & Architecture, Xiangyang, Peoples R China 2.Hubei Geol Bur, Geol Brigade Hubei 8, Xiangyang, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 4.Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan, Peoples R China 5.Shanxi Transportat Technol Res & Dev Co Ltd, Taiyuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Xingtao,Wei, Pengfei,Fu, Xiaodong,et al. Dynamic Process and Mechanism of the Catastrophic Taihongcun Landslide Triggered by the 2008 Wenchuan Earthquake Based on Field Investigations and Discrete Element Method Simulations[J]. FRONTIERS IN EARTH SCIENCE,2021,9:19. |
| APA | Zhou, Xingtao,Wei, Pengfei,Fu, Xiaodong,Li, Lihua,&Xue, Xiaohui.(2021).Dynamic Process and Mechanism of the Catastrophic Taihongcun Landslide Triggered by the 2008 Wenchuan Earthquake Based on Field Investigations and Discrete Element Method Simulations.FRONTIERS IN EARTH SCIENCE,9,19. |
| MLA | Zhou, Xingtao,et al."Dynamic Process and Mechanism of the Catastrophic Taihongcun Landslide Triggered by the 2008 Wenchuan Earthquake Based on Field Investigations and Discrete Element Method Simulations".FRONTIERS IN EARTH SCIENCE 9(2021):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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