海洋開発論文集
Online ISSN : 1884-8265
Print ISSN : 0912-7348
ISSN-L : 0912-7348
河口砂州の変動予測モデル
古池 鋼宇多 高明芹沢 真澄三波 俊郎星上 幸良高橋 功
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2006 年 22 巻 p. 899-904

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A simple model for predicting change in sand bar of a river mouth was developed. Topographic changes of a river mouth bar were investigated first, taking the case of Sagami River and a river mouth facing the Pacific Ocean as the example. The equilibrium state of the profile of a sand bar is assumed and the strength of the recovery of river mouth topography is determined depending upon the shift from this equilibrium state. The offshore sand transport due to flood current and shoreward sand transport due to waves were modeled to predict three-dimensional change of a sand bar. Dynamic changes in a river mouth bar responding flood current and waves can be predicted by this model.

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© 社団法人 土木学会
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