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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
Corresponding AuthorHe, Siming(hsm@imde.ac.cn)
2019-07-01
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
EISSN1435-9537
Volume78Issue:5Pages:3269-3279
SubtypeArticle
AbstractOn 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.
KeywordXinmo village landslide Morphodynamic Seismic signal Frictional velocity-weakening
DOI10.1007/s10064-018-1360-0
Indexed BySCI
WOS Keyword2008 WENCHUAN EARTHQUAKE ; RUN-OUT ; SIMULATION ; MECHANISM ; ROCKSLIDE ; MOBILITY ; DEBRIS ; DAMS ; RISK ; DDA
Language英语
Quartile3区
Funding ProjectNSFC-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
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000471237400016
Funding OrganizationNSFC-ICIMOD ; NSFC ; Key Research and Development Program ; Scientific Support Program of the Science and Technology Department of Sichuan Province of China
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23505
Collection山地灾害与地表过程重点实验室
Corresponding AuthorHe, Siming
Affiliation1.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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