Performance Evaluation of Deforming Rubble Mound Breakwater in terms of Overtopping Quantity

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  • 断面変形を伴う傾斜堤の越波量からみた性能評価

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In this study, laboratory experiments are conducted to investigate the variations of reflection coefficient and volume of overtopped water due to damage progression of a rubble mound breakwater. Furthermore, a time-averaged numerical wave model and semi-empirical overtopping model are applied to computation of wave energy dissipation, reflection coefficient and overtopping rate. The results of the experiments show that reflection coefficient does not change much with damage progression of the breakwater and the variations of overtopping rate have different tendency in each test. The computed reflection coefficient and overtopping rate agree with the measured values.

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