Determination of Residual Thrust Force of Landslide Using Vector Sum Method
Publication: Journal of Engineering Mechanics
Volume 146, Issue 7
Abstract
Different from the conventional transfer coefficient method widely used for calculating landslide thrust, the vector sum method can incorporate the complete stress state from any numerical simulation into a limit equilibrium analysis, with the vector characteristics of force featured. In this paper, the vector sum method is improved to calculate the landslide thrust under design factor of safety before the reinforcement of landslide. The main sliding direction is theoretically determined by the principle of minimum potential energy. The distribution of landslide thrust along the slip surface can be directly calculated from the trailing edge to the leading edge of landslide, which can benefit the reinforcement design of the slope. Finally, three examples are used to verify the proposed method, and the calculated results demonstrate the accuracy and the broader applicability of the proposed method.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors gratefully acknowledge the financial support of the International Science and Technology Cooperation Program of China (Grant No. 2018YFE0100100), National Natural Science of China under Grant No. 51674239, and Open Funds Research Project of Key Laboratory of Geological Hazards on Three Gorges Reservoir Area (China Three Gorges University), Ministry of Education (Grant No.2018KDZ02).We further thank the anonymous reviewers, the associate editor, and editorial coordinator for their valuable comments, which improved this article significantly.
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Published In
Journal of Engineering Mechanics
Volume 146 • Issue 7 • July 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Jan 5, 2019
Accepted: Jan 17, 2020
Published online: Apr 23, 2020
Published in print: Jul 1, 2020
Discussion open until: Sep 23, 2020
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