Wedge-Failure Analysis of the Seismic Slope Using the Pseudodynamic Method
Publication: International Journal of Geomechanics
Volume 17, Issue 12
Abstract
In the past, the pseudostatic method was the most common method used to evaluate stability of the slope under seismic loads. Through the method, static forces acting on the center of gravity of a sliding body are used to consider the effects of an earthquake. However, seismic loads have different geomaterials at different times and locations; therefore, it is not reasonable to apply the pseudostatic approach to solve dynamic problems. In this study, a pseudodynamic method was developed to compute the dynamic factor of safety of the seismic slope. A sinusoidal wave was applied to simulate the effects of an earthquake. The effects of physicomechanical behaviors of geomaterials on the seismic stability of slopes were taken into account as were inertia and damping forces. In addition, two classical examples were investigated to verify the robustness and precision of the proposed method. The results from the present method are in good agreement with those from studies published previously.
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Acknowledgments
The work was supported by the National Natural Science Foundation of China (Grants 51325903 and 51679017) and the Natural Science Foundation Project of CQ CSTC (Grants cstc2013kjrcljrccj0001, cstc2013jcyjys0005, cstc2015jcyjys0002, cstc2015jcyjys0009, and cstc2016jcyjys0005).
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Published In
International Journal of Geomechanics
Volume 17 • Issue 12 • December 2017
Copyright
© 2017 American Society of Civil Engineers.
History
Received: Nov 9, 2016
Accepted: Jun 5, 2017
Published online: Sep 27, 2017
Published in print: Dec 1, 2017
Discussion open until: Feb 27, 2018
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