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  1. 学術雑誌掲載済論文

河道幅が漸縮する湾曲部における流水流路幅の経年変動に関する研究

https://kitami-it.repo.nii.ac.jp/records/2000324
https://kitami-it.repo.nii.ac.jp/records/2000324
12646007-3fce-48f8-9ca9-ffe71edcc4dd
名前 / ファイル ライセンス アクション
21_235.pdf 21_235.pdf (10.9 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2022-08-29
タイトル
言語 ja
タイトル 河道幅が漸縮する湾曲部における流水流路幅の経年変動に関する研究
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 早川 博

× 早川 博

ja 早川 博

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北尾 智紀

× 北尾 智紀

ja 北尾 智紀

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松原 健也

× 松原 健也

ja 松原 健也

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市川 嘉輝

× 市川 嘉輝

ja 市川 嘉輝

Search repository
抄録
内容記述タイプ Abstract
内容記述 In the Kushiro Wetland, old river reconstruction project, which shifts the channel of the current straightened river to the old meandering one, started from 2006 and was completed in 2011. This study focuses on river bed fluctuation of the curved channel with channel width narrowing, where is located in the inlet of the old meandering river with 30(m) width from straightened one with 80(m). From field survey, in response to change in water and sediment discharges, significant streamwise variation in water flow width in the curved channel adjusts in order to establish the dynamic equilibrium. Along the outer bank of curved channel, the secular bed deposit beside the outer bank is increasing, and as a result, the main streamline flows into the old river along the inner bank as left bank. Moreover, this narrowing curved channel easily leads to overspill some flood water including rich suspended sediment and to deposit some fine sand near channel side flood plain. We intend to explain above significant bed variations by using movable bed experiments with the distorted model and the numerical simulations.
言語 en
書誌情報 ja : 河川技術論文集

巻 21, p. 235-240, 発行日 2015
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.11532/river.21.0_235
権利
言語 ja
権利情報 c2015 土木学会
出版者
言語 ja
出版者 土木学会
著者版フラグ
言語 en
値 publisher
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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