The Impact of Microearthquakes Induced by Reservoir Water Level Rise on Stability of Rock Slope
Joint Authors
Liu, Xinrong
Li, Dongliang
Li, Xingwang
Liu, Yongquan
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-07-31
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In order to study the impact of frequent microearthquakes induced by water level rise on the stability of rock bedded slopes in the Three Gorges Reservoir (TGR) area, Zhaoshuling Landslide (a representative slope) is selected to study.
Safety factors based on probability statistics and F L A C 3 D are used for numerical simulation (under the operating condition that five earthquakes of Intensity IV are applied to slope in succession after water level rises from 145 m to 175 m).
Then the slope’s dynamic stability characteristics and failure mechanism are analyzed.
The study shows that slope deformation is evidently the result of thrust load.
The deformation starts from the steeply dipping segment in the middle part of slip mass and is controlled by the soft interlayer.
Shear failure tends to occur along the soft interlayer and the horizontal slip displacement increases from the rear to the front of the slope.
The steeply dipping segment shows a general downslide trend.
Although the gentle slope platform on the rear edge is relatively stable, it is vulnerable to tensile fractures which are precursors of landslide.
Under the same failure probability, as the number of microearthquake occurrences increases, the safety factor of slope under microearthquake action decreases gradually.
American Psychological Association (APA)
Li, Dongliang& Liu, Xinrong& Li, Xingwang& Liu, Yongquan. 2016. The Impact of Microearthquakes Induced by Reservoir Water Level Rise on Stability of Rock Slope. Shock and Vibration،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1119638
Modern Language Association (MLA)
Li, Dongliang…[et al.]. The Impact of Microearthquakes Induced by Reservoir Water Level Rise on Stability of Rock Slope. Shock and Vibration No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1119638
American Medical Association (AMA)
Li, Dongliang& Liu, Xinrong& Li, Xingwang& Liu, Yongquan. The Impact of Microearthquakes Induced by Reservoir Water Level Rise on Stability of Rock Slope. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1119638
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119638