Large-Scale Experiments on Pore Pressure Generation underneath a Caisson Breakwater
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 132, Issue 4
Abstract
Results of large-scale model experiments in a wave flume are discussed. These experiments are concerned with the study of the generation of transient or instantaneous and residual pore pressure in a seabed beneath a caisson breakwater subjected to both pulsating and breaking wave loads. The simulated seabed and drainage conditions correspond to those encountered in a loose sand bed with thin clay or silt layers. Even under such unfavorable conditions total liquefaction due to residual pore pressures could not occur during the experiments. It is shown that the residual pore pressure is essentially generated by the caisson motions due to breaking wave loads and that they are closely related to residual soil deformations, which may lead to the failure of the breakwater.
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Acknowledgment
The writers would like to thank the EU for the support of this study within the LIMAS-Project (Liquefaction Around Marine Structures, Contract No. EVK3-CT-2000-00038).
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Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 132 • Issue 4 • July 2006
Pages: 310 - 324
Copyright
© 2006 ASCE.
History
Received: Jun 15, 2004
Accepted: Aug 26, 2004
Published online: Jul 1, 2006
Published in print: Jul 2006
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