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防波柵による津波浸水流の低減効果及び波力に関する実験的研究
http://hdl.handle.net/2297/40507
http://hdl.handle.net/2297/4050744580fa7-c4a8-4d6d-8c23-fb07aedc7a2b
名前 / ファイル | ライセンス | アクション |
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TE-PR-UMEDA-S-323.pdf (1.1 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | 防波柵による津波浸水流の低減効果及び波力に関する実験的研究 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Reduction of Tsunami Inundation Flow and Tsunami Force by a Porous Vertical Barrier Mounted on a Seawall | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
楳田, 真也
× 楳田, 真也× 斎藤, 武久× 古路, 裕子× 中口, 彰人× 石田, 啓 |
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書誌情報 |
土木学会論文集B3(海洋開発)= Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 巻 69, 号 2, p. I_323-I_328, 発行日 2013-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2185-4688 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12373113 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2208/jscejoe.69.I_323 | |||||
出版者 | ||||||
出版者 | 土木学会 = Japan Society of Civil Engineers | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 海岸護岸上に設置されていた透過性のある防波柵が背後地の被害軽減に役立ったと推測される事例が確認されているものの,防波柵の津波浸水流の低減効果や減災機能の定量的な評価はされていない.本研究では津波に対する防波柵の効果や津波波力の基本特性を明らかにするために,護岸や柵の構造的条件や段波津波の条件を系統的に変化させた段波実験を行い,柵衝突時の段波津波の挙動,重複波高の増幅,浸水深・流速及び波力の低減比率を調べた.その結果,柵の遮蔽率が一定の場合,浸水流速の低減効果は相対的波高が小さい程高まるが,浸水深や作用波力は重複波高が柵高の半分以上柵高以下の段波に対して低減効果が高まること,不透過壁の波力と比べた防波柵の波力の減少量は柵面での遮蔽面積の減少分より大きく,防波柵にかかる波力はかなり低減できる可能性があること等が分かった.The reduction of tsunami inundation flow and tsunami force by a porous vertical barrier installed on a seawall was investigated to give a better understanding of effects of coastal structures on tsunami hazard mitigation. Laboratory experiments of permeable and impermeable wave barriers exposed to breaking bore were carried out to examine variations in wave height amplifications, inundation flows and wave forces acting on barriers. It turns out that the porous barrier can reduce the inundation depth and discharge effectively. The reduction effects on the inundation depth and discharge are mainly governed by the porosity of barrier and the relative tsunami height to barrier height. The reduction of inundation velocity is less than that of inundation depth. When tsunami height in front of a porous barrier is between 0.5 and 1.0 with respect to barrier height, the wave force acting on the barrier can be significantly reduced in comparison with that of the impermeable barrier. This is because that the reduction of wave force is influenced by variations in tsunami height in front of the porous barrier. | |||||
権利 | ||||||
権利情報 | Copyright © Japan Society of Civil Engineers 土木学会 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.jstage.jst.go.jp/browse/jscejoe/-char/ja/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.jsce.or.jp/ |