Discretization-Based Kinematic Analysis Method to Seismic Stability of Geosynthetic-Reinforced Slopes Involving Differing Earthquake Approaches
Publication: International Journal of Geomechanics
Volume 20, Issue 7
Abstract
For soil slopes susceptible to a potential failure, some preemptive measures in the form of reinforced structures are commonly adopted to improve stability. In this study, the seismic stability of a geosynthetic-reinforced soil slope is assessed by applying discretization-based kinematic analysis. Emphasis is placed on the consideration of earthquake input based on the pseudo-static, simple pseudo-dynamic, improved pseudo-dynamic, and modified pseudo-dynamic approaches. The reinforcement force required for maintaining a vertical soil wall is derived from the energy-based balance equation, and comparison between the solutions from these four approaches is highlighted. In order to yield a more reliable solution, a fully coupled pseudo-dynamic analysis is proposed in seismic slope stability assessment, which considers body and Rayleigh waves.
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Acknowledgments
The authors would like to thank the editor and the anonymous reviewers for their valuable suggestions in improving this technical note. The financial support by the President's Graduate Fellowship offered to the first author in his Ph.D. program is also greatly appreciated.
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Published In
International Journal of Geomechanics
Volume 20 • Issue 7 • July 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Feb 19, 2019
Accepted: Oct 15, 2019
Published online: Apr 20, 2020
Published in print: Jul 1, 2020
Discussion open until: Sep 21, 2020
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