Breakwater Armor Damage due to Wave Groups
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 120, Issue 2
Abstract
The effects of wave groups on damage to the armor layer for nonovertopped, rubble mound breakwaters were analyzed by a large‐scale experiment. Two independent wave grouping parameters were evaluated in the experiment: (1) The mean run length correlated with the spectral peakedness parameter ; and (2) an envelope exceedance coefficient correlated with a wave height function . The observed damage levels of the armor layer were found to be correlated with ; on the contrary, no significant correlation was found between armor damage and spectral peakedness parameter , or mean run length. Because only 224 damage observations were obtained, the experiment did not allow for a complete and reliable modeling of the armor response under wave group attack. The positive correlation between the envelope exceedance coefficient with armor damage may be of the same order of magnitude as the storm duration, and should be considered in both preliminary designs and in analyses of experimental data for armor damage from random waves.
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Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 120 • Issue 2 • March 1994
Pages: 179 - 198
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: May 18, 1992
Published online: Mar 1, 1994
Published in print: Mar 1994
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