自然海岸における津波による土砂移動調査

• 西畑 剛

  五洋建設 (株) 技術研究所

• 後藤 和久

  東北大学大学院工学研究科

• 田島 芳満

  東京大学大学院工学形研究科

• 高橋 智幸

  秋田大学工学資源学部

• 今村 文彦

  東北大学大学院工学研究科

書誌事項

タイトル別名

• A Study for the Sediment Transport due to Tsunami along the Natural Coast

抄録

In this study, we investigated the sediment transport due to the 2004 Indian ocean tsunami along the natural coast at Hambantota, Sri-lanka. Bathymetry and topography surveys before and after the tsunami were conducted and the results showed significant erosion by the tsunami, especially around the places where shoreline discontinuations were observed. We conducted a numerical simulation of tsunami propagation as well as the bathymetry change induced by the tsunami. Furthermore, we also estimated the bathymetry change due to the usual sea waves at the coast. Our numerical results suggested that the tsunami has strong bottom shear stress at specific landform such as a river mouth and a cape. We also found that the sediment erosion and accumulation due to the tsunami had been mitigated by usual sea waves after the tsunami.

収録刊行物

• 海岸工学論文集

  海岸工学論文集 55 446-450, 2008

  公益社団法人 土木学会

キーワード

• General Chemical Engineering

詳細情報

• CRID: 1390001204550341504
• NII論文ID: 130003992284
• DOI: 10.2208/proce1989.55.446
• ISSN: 18848222
• ISSN: 09167897
• データソース種別:
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  • Crossref
  • CiNii Articles
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