A three-dimensional numerical model for wave-induced soil response around the head of a breakwater (No. R859)
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Open Access
Type
Report, ResearchAbstract
The evaluation of wave-induced seabed response has been recognised as a dominant factor in analyzing the seabed instability in the vicinity of a breakwater. Most previous investigations for wave-induced pore water pressure have been limited to two-dimensions, which are not able to ...
See moreThe evaluation of wave-induced seabed response has been recognised as a dominant factor in analyzing the seabed instability in the vicinity of a breakwater. Most previous investigations for wave-induced pore water pressure have been limited to two-dimensions, which are not able to simulate the phenomenon around the head of a breakwater. In this study, a three-dimensional model for the wave-induced pore pressure around the head of a breakwater is established for both oscillatory and residual mechanisms. Numerical results conclude: (1) diffracted wave components significantly affect the distribution of pore water pressure and vertical effective normal stresses and liquefaction potential; (2) a liquefied hole occurs near the head of a breakwater; (3) incident wave angles do not only affect the pattern of liquefied regions, but also the maximum liquefaction depth; (4) the soil types significantly affect the distribution of soil response and liquefaction, and liquefaction only occurs in fine sand, not coarse sand.
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See moreThe evaluation of wave-induced seabed response has been recognised as a dominant factor in analyzing the seabed instability in the vicinity of a breakwater. Most previous investigations for wave-induced pore water pressure have been limited to two-dimensions, which are not able to simulate the phenomenon around the head of a breakwater. In this study, a three-dimensional model for the wave-induced pore pressure around the head of a breakwater is established for both oscillatory and residual mechanisms. Numerical results conclude: (1) diffracted wave components significantly affect the distribution of pore water pressure and vertical effective normal stresses and liquefaction potential; (2) a liquefied hole occurs near the head of a breakwater; (3) incident wave angles do not only affect the pattern of liquefied regions, but also the maximum liquefaction depth; (4) the soil types significantly affect the distribution of soil response and liquefaction, and liquefaction only occurs in fine sand, not coarse sand.
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Date
2005Publisher
School of Civil Engineering, The University of SydneyLicence
Copyright All Rights ReservedRights statement
This publication may be redistributed freely in its entirety and in its original form without the consent of the copyright owner. Use of material contained in this publication in any other published works must be appropriately referenced, and, if necessary, permission sought from the author.Faculty/School
Faculty of Engineering, School of Civil EngineeringDepartment, Discipline or Centre
Centre for Advanced Structural EngineeringShare