NUMERICAL SIMULATION OF TSUNAMI SCOUR AT LANDWARD TOE OF COASTAL DIKE AND EVALUATION OF EFFECTIVENESS OF GABIONS
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- NAKAMURA Tomoaki
- 名古屋大学 大学院工学研究科土木工学専攻
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- TANIGUCHI Junya
- 大成建設株式会社
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- CHO Yonghwan
- 名古屋大学 大学院工学研究科土木工学専攻
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- MIZUTANI Norimi
- 名古屋大学 大学院工学研究科土木工学専攻
Bibliographic Information
- Other Title
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- 越流津波による海岸堤防裏法尻の洗掘の数値解析と蛇籠工の効果の評価
- エツリュウ ツナミ ニ ヨル カイガン テイボウリホウジリ ノ センクツ ノ スウチ カイセキ ト ジャカゴコウ ノ コウカ ノ ヒョウカ
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Abstract
<p> A three-dimensional coupled fluid-structure-sediment-seabed interaction model (FS3M) was applied to hydraulic experiments on the effectiveness of gabions against tsunami scour at the landward toe of a coastal dike. Numerical results showed that the predictive capability of the FS3M was demonstrated in terms of temporal change in the maximum scour depth for all conditions without the gabions and a small discharge condition with the gabions. From numerical results for a large discharge condition with the gabions, which subsided due to sand leakage in the hydraulic experiments, it was suggested that it was essential to take into account the subsidence of the gabions in accurately assessing the effectiveness of gabions.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75 (2), I_703-I_708, 2019
Japan Society of Civil Engineers