Dynamic Soil-Structure Interaction of a Gravity Quay Wall and the Effect of Densification in Liquefiable Sites
Publication: International Journal of Geomechanics
Volume 14, Issue 1
Abstract
The lateral spreading of backfill soil caused by displacement of gravity-type quay walls is a major concern for geotechnical engineers. This paper evaluates the efficiency of a technique for mitigation of damage to quay walls, which involves densification of loose sand around the toe. The beneficial and unfavorable effects of densification of sand of different locations of the gravity-type quay walls are also answered. For these purposes, numerical simulations (using a finite-element code) and shake table tests were conducted. From numerical simulations and model tests, it was observed that the displacement of a gravity-type quay wall occurred mainly because of shear strain in the foundation. It was also found that the densification of soil at the toe could mitigate the quay wall damage significantly.
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Acknowledgments
The FEW program GEFDYN used in the numerical analysis was obtained from research collaboration between Ecole Centrale Paris (ECP), France, and Bangladesh University of Engineering and Technology (BUET), initiated by Prof. Didier Clouteau (ECP) and Prof. Dr. Tahmeed M. Al-Hussaini (BUET). The authors express their sincere gratitude to them for allowing the program GEFDYN to be used in this investigation. The authors acknowledge the help of Dr. Fernando Lopez-Caballero, Research Associate of ECP, for assistance during numerical simulations. The authors thank the Centre for Advanced Studies and Research of BUET for granting the research fund.
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Published In
International Journal of Geomechanics
Volume 14 • Issue 1 • February 2014
Pages: 20 - 33
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Feb 15, 2012
Accepted: Dec 10, 2012
Published online: Dec 12, 2012
Published in print: Feb 1, 2014
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