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Chain-Style Landslide Hazardous Process: Constraints From Seismic Signals Analysis of the 2017 Xinmo Landslide, SW China
Li, Wei1,2; Chen, Yun1,2; Liu, Feng3; Yang, Hongfeng4; Liu, Jianli5; Fu, Bihong6
2019-02-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
Volume124Issue:2Pages:2025-2037
AbstractLandslides generally involve rapid acceleration and deceleration of huge mass in just several minutes, and their unpredictability have made real-time detections of their rapid processes difficult. Seismic signals generated by landslides provide an excellent opportunity to obtain the time-dependent observations on landslide's processes. We invert the force-time function by fitting long-period seismic signals generated by Xinmo landslide on 23 June 2017, SW China, and determine three-stage dynamic processes within 104-s duration of this event. Constrained by the field observed runout distance, we deduce the landslide's mass of about 9x10(9)kg with corresponding maximum velocity and acceleration of 58.8m/s and 4.38m/s(2), respectively. Combining dynamic parameters, apparent friction coefficient, and seismic signal features, we depict a dynamic landslide process initiated by high-position rockslide, traveled by rapid long runout debris, and deposited over an old landslide's deposition fan. The rapid process of the landslide is affected by multiple preconditions such as the structure, topography, and meteorology of the site, which is characteristic of a typical chain-style landslide hazard and could be helpful to recognize potential slope instabilities. Plain Language Summary Rapid long-runout and large-volume landslides are dangerous geological hazards that often cause heavy losses of human lives and properties, and have been found in high mountain areas around the world. Factors that govern landslide's movement and catastrophic hazards are less well understood, one of the reasons being a lack of an effective method to learn about landslides' spatiotemporal processes. Through analysis of seismic signals generated by the Xinmo landslide on 23 June 2017, SW China, we deduce key features including mass, dynamic parameters, and apparent friction coefficient of the landslide, and we determine a three-stage dynamic process within 104-s duration of the typical chain-style landslide hazard governed by structural, topographical, and meteorological factors of the site. These results would make it possible to elucidate the physical processes of large and fast landslides, and help to estimate speed and scale of potential landslides in hazard assessments.
DOI10.1029/2018JB016433
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK
WOS KeywordSINGLE-FORCE ; MAOXIAN LANDSLIDE ; FRICTION ; WAVES ; SEISMOGRAMS ; SEISMOLOGY ; DISASTER ; FAILURE ; SPACE
Language英语
Funding ProjectNational Key R&D Program of China[2016YFC0600402] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB18000000] ; National Natural Science Foundation of China[41804056] ; National Natural Science Foundation of China[41374063] ; National Natural Science Foundation of China[41672204] ; National Natural Science Foundation of China[41474056] ; Hong Kong RGC[14305617] ; Hong Kong RGC[14306418] ; Faculty of Science, CUHK
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong RGC ; Hong Kong RGC ; Faculty of Science, CUHK ; Faculty of Science, CUHK
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000462355800049
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/91070
Collection岩石圈演化国家重点实验室
Corresponding AuthorChen, Yun; Liu, Feng
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
3.Chinese Acad Geol Sci, Inst Geomech, Beijing, Peoples R China
4.Chinese Univ Hong Kong, Fac Sci, Earth Syst Sci Programme, Hong Kong, Peoples R China
5.Shaanxi Geol & Min Grp, Geophys & Geochem Explorat Team, Xian, Shaanxi, Peoples R China
6.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, Wei,Chen, Yun,Liu, Feng,et al. Chain-Style Landslide Hazardous Process: Constraints From Seismic Signals Analysis of the 2017 Xinmo Landslide, SW China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019,124(2):2025-2037.
APA Li, Wei,Chen, Yun,Liu, Feng,Yang, Hongfeng,Liu, Jianli,&Fu, Bihong.(2019).Chain-Style Landslide Hazardous Process: Constraints From Seismic Signals Analysis of the 2017 Xinmo Landslide, SW China.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,124(2),2025-2037.
MLA Li, Wei,et al."Chain-Style Landslide Hazardous Process: Constraints From Seismic Signals Analysis of the 2017 Xinmo Landslide, SW China".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 124.2(2019):2025-2037.
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