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Development of a meandering channel caused by the planform shape of the river bank
https://kitami-it.repo.nii.ac.jp/records/8072
https://kitami-it.repo.nii.ac.jp/records/8072c6165ae1-4783-4038-92c0-bc1a27e40204
名前 / ファイル | ライセンス | アクション |
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2014.04_Development of a meandering channel caused by the planform shape of the river bank.pdf (11.9 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-01-29 | |||||
タイトル | ||||||
タイトル | Development of a meandering channel caused by the planform shape of the river bank | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権URI | open access | |||||
著者 |
Nagata, T
× Nagata, T× Watanabe, Y× Yasuda, H× Ito, A |
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著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 44829 | |||||
識別子Scheme | KAKEN | |||||
識別子URI | https://nrid.nii.ac.jp/ja/nrid/1000000344424 | |||||
識別子 | 344424 | |||||
姓名 | 渡邊, 康玄 | |||||
言語 | ja | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Due to a typhoon and a stationary rain front, record amounts of rain fell in September 2011, and the largest class of discharge in recorded history was observed in the Otofuke River of eastern Hokkaido in Japan, and extensive bank erosion occurred in various parts of the river channel. Damages were especially serious in the middle reaches, where part of a dike was washed out. The results of a post-flood survey suggested that the direct cause of the dike breach was lateral advance of the bank erosion associated with the development of meandering channels. As the related development mechanism and predominant factors have not yet been clarified, this remains a priority from the viewpoint of disaster prevention. A past study on the development of meandering channels was reported by Shimizu et al. (1996). In this study, the meandering channel development process was reproduced using a slope failure model that linked bank erosion with bed changes. The study attempted to clarify the meandering development mechanism in the disaster and its predominant factors by using this model. The analysis properly reproduced the characteristics of the post-flood meandering waveforms. Therefore, it is suggested that the development of meandering during the flood attributed to the propagation of meandering downstream, which is triggered by the meandering flow from the meandering channel in the upstream, which also suggests that this propagated meandering then caused a gradual increase of meandering amplitude accompanied by bank erosion in the recession period of the flood. |
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内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | c Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License. |
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書誌情報 |
Earth Surface Dynamics 巻 2, p. 255-270, 発行日 2014 |
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DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.5194/esurf-2-255-2014 | |||||
権利 | ||||||
権利情報 | c Author(s) 2014. This work is distributedunder the Creative Commons Attribution 3.0 License. | |||||
出版者 | ||||||
出版者 | European Geosciences Union | |||||
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言語 | en | |||||
値 | publisher | |||||
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出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |