土木学会論文集B2(海岸工学)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
人工浅場の地形変化過程に与える浅場内部の間隙水圧変動の影響に関する実験的研究
中村 友昭根笹 裕太水谷 法美
著者情報
ジャーナル フリー

2012 年 68 巻 2 号 p. I_541-I_545

詳細
抄録

The wave-induced evolution of the surface profile of an artificial shallow is investigated experimentally in terms of temporal changes in bottom flow velocity on the surface of the shallow and pore-water pressure inside the surface layer of the shallow. Experimental results show that the relative vertical effective stress ratio is always negatively correlated with the Shields parameter defined as positive landward, and suggest that offshore sediment transport can be accelerated regardless of the profile evolution of the shallow. Moreover, it is found that sediment transport on the shallow can always be assessed reasonably well using a Shields parameter modified to consider pore-water pressure on the surface layer of the shallow, and consequently the consideration of the pore-water pressure is essential to assess the topographic change of the shallow.

著者関連情報
© 2012 公益社団法人 土木学会
前の記事 次の記事
feedback
Top