Hydrodynamic Pressure on Gravity Dams with Different Heights and the Westergaard Correction Formula
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Volume 18, Issue 10
Abstract
Seismic dynamic analysis of gravity dams of five different heights in the time domain was performed based on the fluid–structure coupling model (FSCM). Compared with the results from the FSCM, the maximum hydrodynamic pressures on dams were found to be overestimated by the classical Westergaard formula. The position of the maximum hydrodynamic pressure from the FSCM was found to be obviously raised along the upstream surface of the dam, not at the heel of the dam as in the solution of Westergaard formula. Thus, the Westergaard formula was revised with consideration to the influence of the height of dam, the elasticity of dam, and the absorption characteristic of the reservoir bottom on the hydrodynamic pressure. The solutions of the Westergaard correction formula are quite consistent with the hydrodynamic pressures noted in previous reports.
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Acknowledgments
The authors are grateful to the reviewers for their very useful comments and suggestions. This research was financially supported by the National Nature Science Foundation of China (Grants 51669008, 51679030, and 51779032) and the Science and Technology Support Plan for the Thirteenth Five-Year Plan (Grants 2017YFC0404900 and 2017YFC0404903).
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Published In
International Journal of Geomechanics
Volume 18 • Issue 10 • October 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Nov 1, 2017
Accepted: Apr 12, 2018
Published online: Aug 6, 2018
Published in print: Oct 1, 2018
Discussion open until: Jan 6, 2019
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