下新川海岸生地以東地区における越波対策施設の性能評価と計画留意について

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  • The performance evaluation of the shore protection facilities on overtopping waves in the east of Shimoniikawa
  • シモニイカワ カイガン イクジ イトウ チク ニ オケル エッパ タイサク シセツ ノ セイノウ ヒョウカ ト ケイカク リュウイ ニ ツイテ

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説明

In Shimoniikawa coast, validity of performance evaluation of shore protection facilities on overtopping waves by two-dimensional parabolic equation / runup heights on improvement imaginary slopes was confirmed by comparing a state of overtopping waves in high waves by using CCTV (Closed-circuit Television). We evaluated performance of the shore protection facilities on overtopping waves of Shimoniikawa coast with this method. Validity of overtopping quantity calculated by CADMAS-SURF (SUper Roller Flume for Computer Aided Design of Maritime Structure) was confirmed by comparing a field survey after the inundation. In addition, the coast where erosion continues had better consider plan of offshore breakwaters to scour the levee foundation.

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