Modeling for Profile Change of Rubble Mound Seawall and Performance Evaluation

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  • 傾斜護岸の断面変形のモデル化と性能評価
  • ケイシャ ゴガン ノ ダンメン ヘンケイ ノ モデルカ ト セイノウ ヒョウカ

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This study deals with modeling for profile change of rubble mound seawall based on the experimental results. The model profiles are given by composite sine curve corresponding to the degree of deformation of the structure. The model profiles agree well with the measured profiles. The model profiles are also used in the experiments and numerical model to evaluate the change of the wave dissipation performance. The reflection coefficient and overtopping rate are used as the indices of the performance. The measured reflection coefficient decreases but the overtopping rate increases with damage progression of the seawall. The computed reflection coefficient is almost constant and the overtopping rate shows opposite tendency from the experimental result.

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