Lateral Displacement and Internal Force in Diaphragm Walls Based on Principle of Minimum Potential Energy
Publication: International Journal of Geomechanics
Volume 19, Issue 6
Abstract
Predicting the lateral displacement in the diaphragm wall is of significance for the design of foundation pits. This study investigated the behavior of diaphragm walls with internal bracing under eccentric loads. The wall and the internal brace were idealized as an elastic flat plate with an elastic bar. To acquire an analytical solution, governing differential equations for lateral displacements were developed based on energy equilibrium. Closed-form solutions to lateral displacements, bending moment, and shear force were obtained by means of the Ritz method. Validation showed that the predictions were in a good agreement with observations and numerical results. Parametric studies indicated that the penetration depth, the flexural rigidity of the diaphragm wall, and the rigidity of internal brace have significant effects on the lateral response of the diaphragm wall.
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Acknowledgments
This research was funded by the National Natural Science Foundation of China (51678231 and 51774107), the Basal Research Fund Support of Hunan University, the Fundamental Research Funds for the Hefei Key Project Construction Administration (2013CGAZ0771), and the Fundamental Research Funds of the Housing and Construction Department of Anhui Province (2013YF-27).
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Published In
International Journal of Geomechanics
Volume 19 • Issue 6 • June 2019
Copyright
© 2019 American Society of Civil Engineers.
History
Received: Apr 6, 2018
Accepted: Nov 21, 2018
Published online: Apr 11, 2019
Published in print: Jun 1, 2019
Discussion open until: Sep 11, 2019
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