A Field Experiment concerning the Causes and Measures against Damage to Erosion Control Sheets on Seawalls

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  • 防波護岸における防砂シートの損傷要因と対策に関する現地実験
  • ボウハ ゴガン ニ オケル ボウサ シート ノ ソンショウ ヨウイン ト タイサク ニ カンスル ゲンチ ジッケン

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Effects of waves on erosion control sheets on seawalls under construction, and measures to prevent damage to the sheets were examined in hydraulic model and field experiments. The strain applied to the sheets by back waves was approximately 70 times larger than that applied by front waves. It was also confirmed that the measures were effective in reducing the sheet strain and number of damaged parts on the sheets. In addition, it was found that sheets were damaged even with diffracted wave height of approximately 0.1 m, and that the influence of the diffracted waves that struck at the during the field test was approximately three times larger than that of front waves.

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