QUANTITATIVE EVALUATION OF SEDIMENT FLOW, AND ASSOCIATED EROSION-DEPOSITION ON SEABED SUBJECTED TO DIAGONAL OVERLAP REFLECTION WAVES FROM LINEAR STRUCTURES
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- TRAN Anh Quang
- 豊橋技術科学大学 建築・都市システム学専攻
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- MIURA Kinya
- 豊橋技術科学大学 建築・都市システム学系
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- MATSUDA Tatsuya
- 豊橋技術科学大学 建築・都市システム学系
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- YOSHINO Takahito
- 豊橋技術科学大学 建築・都市システム学専攻
Bibliographic Information
- Other Title
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- 直線構造物への斜行反射重複波を受ける海底における底質移動と侵食・堆積の定量的評価
- チョクセン コウゾウブツ エ ノ シャコウハンシャ チョウフクハ オ ウケル カイテイ ニ オケル テイシツ イドウ ト シンショク ・ タイセキ ノ テイリョウテキ ヒョウカ
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Abstract
In the case where an incident plane wave meets a liner structure in perpendicular direction, the overlapped wave forms a classical stationary wave, which induces characteristic sediment flow on seabed. In more general situations, however, the incident wave meets linear structures in not perpendicular but diagonal directions. In these cases overlapped waves would behave in three-dimensional manner; the effectiveness of two-dimensional analyses and/or experiments would be limited. Present study aims to analyze the sediment flow induced by the diagonally incident and reflected waves, and evaluate quantitatively the erosion-deposition behavior, taking the response of seabed effective stress response to wave loading into account. We used an analysis method comprised with linear wave theory, pore-elasticity for seabed medium, and empirical sediment flow model mobilized by sea wave traction.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 74 (2), I_826-I_831, 2018
Japan Society of Civil Engineers