| Dynamic process of the massive Xinmo landslide, Sichuan (China), from joint seismic signal and morphodynamic analysis | |
Bai, Xiuqiang1,2,3; Jian, Jihao4; He, Siming1,5,6 ; Liu, Wei5,6
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| Corresponding Author | He, Siming(hsm@imde.ac.cn) |
| 2019-07-01 | |
| Source Publication | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
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| ISSN | 1435-9529 |
| EISSN | 1435-9537 |
| Volume | 78Issue:5Pages:3269-3279 |
| Subtype | Article |
| Abstract | On 24 June 2017, a massive high-position landslide occurred at Diexi, Maoxian county, Sichuan, China, destroying the village of Xinmo with over 80 fatalities. Based on field surveys and DEM data before and after the landslide, the run-out of the landslide had a horizontal extent of 2400m and a vertical extent of 1200m and covered an area of about 1.48x10(6)m(2). Based on the pre- and post-landslide profiles, the landslide region can be divided into four zones: source area, erosion area, sliding area, and accumulation area. The volume and area of each zone were calculated from DEM data before and after the landslide. Because of the fragmentation and erosion of the landslide during movement, the landslide volume increased from 2.8x10(6)m(3) to 6.4x10(6)m(3); the fractional amount of volume expansion due to fragmentation (F-F) and entrainment ratio (ER) were 0.033 and 1.23, respectively. The velocity and acceleration of the Xinmo landslide were calculated through the inverted forces from seismic waves. The friction coefficients in each zone of the landslide during movement were also obtained, providing a useful parameter for numerical simulation modeling. An inverse relation was found between the absolute velocity and friction coefficient of each zone, demonstrating the existence of frictional velocity-weakening in massive extensive landslides. Based on frictional velocity-weakening, the steady-state apparent friction (U,sigma) as a function of absolute slip velocity U and normal pressure sigma was also obtained. |
| Keyword | Xinmo village landslide Morphodynamic Seismic signal Frictional velocity-weakening |
| DOI | 10.1007/s10064-018-1360-0 |
| Indexed By | SCI |
| WOS Keyword | 2008 WENCHUAN EARTHQUAKE ; RUN-OUT ; SIMULATION ; MECHANISM ; ROCKSLIDE ; MOBILITY ; DEBRIS ; DAMS ; RISK ; DDA |
| Language | 英语 |
| Quartile | 3区 |
| Funding Project | NSFC-ICIMOD[41661144041] ; NSFC[41772312] ; Key Research and Development Program ; Scientific Support Program of the Science and Technology Department of Sichuan Province of China[2017SZ0041] ; Scientific Support Program of the Science and Technology Department of Sichuan Province of China[2016SZ0067] |
| TOP | 否 |
| WOS Research Area | Engineering ; Geology |
| WOS Subject | Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary |
| WOS ID | WOS:000471237400016 |
| Funding Organization | NSFC-ICIMOD ; NSFC ; Key Research and Development Program ; Scientific Support Program of the Science and Technology Department of Sichuan Province of China |
| Publisher | SPRINGER HEIDELBERG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23505 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | He, Siming |
| Affiliation | 1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chengdu Univ Technol, Coll Environm & Civil Engn, Chengdu, Sichuan, Peoples R China 5.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu, Sichuan, Peoples R China 6.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation GB/T 7714 | Bai, Xiuqiang,Jian, Jihao,He, Siming,et al. Dynamic process of the massive Xinmo landslide, Sichuan (China), from joint seismic signal and morphodynamic analysis[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(5):3269-3279. |
| APA | Bai, Xiuqiang,Jian, Jihao,He, Siming,&Liu, Wei.(2019).Dynamic process of the massive Xinmo landslide, Sichuan (China), from joint seismic signal and morphodynamic analysis.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(5),3269-3279. |
| MLA | Bai, Xiuqiang,et al."Dynamic process of the massive Xinmo landslide, Sichuan (China), from joint seismic signal and morphodynamic analysis".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.5(2019):3269-3279. |
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| Bai2019_Article_Dyna（5231KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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