IMPROVEMENT OF ARTIFICIAL REEF USING CADMAS-SURF AND BOUSSINESQ MODEL
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- TAKAGI Toshimitsu
- 八千代エンジニヤリング株式会社 事業統括本部国内事業部 河川部
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- MATSUSHIMA Saburo
- 合同会社アユーダ
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- ZAHA Takehito
- 八千代エンジニヤリング株式会社 事業統括本部国内事業部 河川部
Bibliographic Information
- Other Title
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- 数値波動水槽とブシネスクモデルを用いた人工リーフ改良に関する研究
- スウチ ハドウ スイソウ ト ブシネスクモデル オ モチイタ ジンコウ リーフ カイリョウ ニ カンスル ケンキュウ
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Abstract
<p> The artificial reefs have been constructed in sandy beachs as the countermeasure of coastal erosion since about 1990. However, some have not shown efficient shore conservation work because of strong nearshore currents due to breaking waves on artificial reefs. In this study, some improvement ideas of the artificial reefs based on the crest type of reefs are presented. It is obvious that the improved artificial reefs equipped with the small obstacle on the onshore edge of the crown is effective for reducing the onshore currents, using the CADMAS-SURF model and Boussinesq model. The wave overtopping rate over the obstacle attached to the reef is calculated by CADMAS-SURF model capable of 2-D vertical wave deformation, and under the boundary condtions of obtained wave overtopping rate, 2-D horizontal distribution of wave height and nearshore currents around the artificial reefs are calculated by the Boussinesq model.</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) 76 (2), I_715-I_720, 2020
Japan Society of Civil Engineers
