DOI: 10.1002/2014GL060592
论文题名: Dynamics of the Bingham Canyon Mine landslides from seismic signal analysis
作者: Hibert C. ; Ekström G. ; Stark C.P.
刊名: Geophysical Research Letters
ISSN: 0094-9982
EISSN: 1944-9713
出版年: 2014
卷: 41, 期: 13 起始页码: 4535
结束页码: 4541
语种: 英语
英文关键词: Bingham Mine
; landslide dynamics
; landslide seismology
; source inversion
Scopus关键词: Dynamics
; Seismic waves
; Seismology
; Time series
; Acceleration and deceleration
; Bingham
; Combined analysis
; Deposit morphology
; Joint interpretation
; Landslide dynamics
; Seismic-signal analysis
; Source inversion
; Landslides
英文摘要: Joint interpretation of long- and short-period seismic signals generated by landslides sheds light on the dynamics of slope failure, providing constraints on landslide initiation and termination and on the main phases of acceleration and deceleration. We carry out a combined analysis of the seismic signals generated by two massive landslides that struck the Bingham Canyon Mine pit on 10 April 2013. Inversion of the long-period waveforms yields time series for the bulk landslide forces and momenta, from which we deduce runout trajectories consistent with the deposit morphology. Comparing these time series with the short-period seismic data, we are able to infer when and where major changes take place in landslide momentum along the runout path. This combined analysis points to a progressive fracturing of the masses during acceleration indicates that deceleration starts the moment they reach the pit floor and suggests that the bulk movement is stopped by a topographic barrier. Key Points Landslides trajectory, forces, and mass estimated from inversion of seismic waves Correspondence between bulk dynamics and short-period seismic signal features Inference of the mechanisms involved in landslide dynamics from seismic signals ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904076936&doi=10.1002%2f2014GL060592&partnerID=40&md5=d4060aed90e22ee8fa3d37eb533c0d5e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7246
Appears in Collections: 气候减缓与适应
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作者单位: Lamont-Doherty Earth Observatory, Columbia University, Palisades NY, United States
Recommended Citation:
Hibert C.,Ekström G.,Stark C.P.. Dynamics of the Bingham Canyon Mine landslides from seismic signal analysis[J]. Geophysical Research Letters,2014-01-01,41(13).