DOI: 10.1002/2013GL059169
论文题名: Triggering and runaway processes of catastrophic Tsaoling landslide induced by the 1999 Taiwan Chi-Chi earthquake, as revealed by high-velocity friction experiments
作者: Togo T. ; Shimamoto T. ; Dong J.-J. ; Lee C.-T. ; Yang C.-M.
刊名: Geophysical Research Letters
ISSN: 0094-10225
EISSN: 1944-9956
出版年: 2014
卷: 41, 期: 6 起始页码: 1907
结束页码: 1915
语种: 英语
英文关键词: Deep-seated landslide
; Earthquake-induced landslide
; High-velocity friction experiment
; Tsaoling landslide
Scopus关键词: Earthquakes
; Experiments
; Friction
; Shale
; Tribology
; Earthquake-induced landslides
; Friction experiments
; Frictional properties
; High-velocity frictions
; Initiation process
; Landslide movements
; Oscillation cycles
; Overburden pressures
; Landslides
; bedding plane
; catastrophic event
; Chi-Chi earthquake 1999
; earthquake trigger
; friction
; landslide
; overburden
; Pliocene
; sedimentary rock
; slip rate
; velocity
; Taiwan
; Tsaoling
英文摘要: Pliocene sedimentary rocks of about 130 Mm3 in volume slid along bedding planes dipping by 14°, with an average speed of about 35 m/s, during the Tsaoling landslide. We conducted friction experiments to reproduce the initiation processes of this landslide, by idealizing landslide movements during the earthquake as accelerating/decelerating motion. Experiments were done on shale from the field, at 3 MPa normal stress corresponding to the overburden pressure. Results indicate that the accelerating/decelerating motion causes weakening and strengthening at each oscillation cycle and results in overall slip weakening which can be approximated as an exponential slip weakening. Behaviors during oscillatory slip are fairly similar to those during sliding at constant slip rates. Newmark analysis with measured frictional properties reveals that the landslide can be triggered with wet gouge properties, but the landslide motion stops with parameters for dry shale gouge. Delayed initiation of the landslide is consistent with a survivor's witness. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898871847&doi=10.1002%2f2013GL059169&partnerID=40&md5=21ffce70b808acc0a2d060e29c7c5a72
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7489
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing, China
Recommended Citation:
Togo T.,Shimamoto T.,Dong J.-J.,et al. Triggering and runaway processes of catastrophic Tsaoling landslide induced by the 1999 Taiwan Chi-Chi earthquake, as revealed by high-velocity friction experiments[J]. Geophysical Research Letters,2014-01-01,41(6).