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  1. 学術雑誌掲載済論文
  2. 和雑誌

砂州による河道攪乱に着目した効果的な置土位置の検討

https://kitami-it.repo.nii.ac.jp/records/2000023
a772ca91-e6af-42bd-9701-162e784ef7a7
名前 / ファイル ライセンス アクション
土木学会論文集B1(水工学)74-5,p379-384.pdf 土木学会論文集B1(水工学)74-5,p379-384.pdf (450 KB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-03-31
タイトル
言語 ja
タイトル 砂州による河道攪乱に着目した効果的な置土位置の検討
タイトル
言語 en
タイトル STUDY ON EFFECTIVE ARTIFICIAL SEDIMENT SUPPLY TO A RIVER CHANNEL DISTURBANCE
言語
言語 jpn
キーワード
言語 en
主題Scheme Other
主題 Bank erosion
キーワード
言語 en
主題Scheme Other
主題 channel disturbance
キーワード
言語 en
主題Scheme Other
主題 artificial sediment supply
キーワード
言語 en
主題Scheme Other
主題 alternate bar
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
著者 秋山, 瑶貴

× 秋山, 瑶貴

ja 秋山, 瑶貴

en AKIYAMA, Tamaki

Search repository
渡邊, 康玄

× 渡邊, 康玄

WEKO 214
CiNii ID 9000411228257
KAKEN - 研究者検索 00344424

ja 渡邊, 康玄

ja-Kana ワタナベ, ヤスハル

en Watanabe, Yasuhau

Search repository
抄録
内容記述タイプ Abstract
内容記述 上流域にダムが建設されている河川では,ダム湖に土砂が堆積することで下流への土砂供給が減少し,下流における河床低下,河床材料の粗粒化,扇状地河道の流路の固定化が生じる場合がある.対策として,ダムに堆積した土砂等を下流へ置土し,出水時に流下させる土砂還元の実施事例が近年増加しているが,供給された土砂の動態が明確にされておらず,未だ下流河川の河道に与える影響など不明な部分が多い.出水時の上流域における河道攪乱が多くの場合,砂州によって引き起こされる河岸浸食に起因する場合が多いことから,本研究では交互砂州による河道攪乱に焦点を当て,水理実験と数値解析により置土の効果的な設置方法の検討を実施した.砂州の半波長の浸食域上流側半分に置土を設置した場合,河岸浸食幅が増大し河道攪乱に効果的であることが明らかとなった.
言語 ja
抄録
内容記述タイプ Abstract
内容記述 The frequency of a channel disturbance decreases and the river environment changes drastically due to a dam construction. In this study, the effective sediment supply method for channel disturbance is examined by hydraulic experiments and numerical analysis. This research focuses on the riverbank erosion caused by alternate bars. The following four cases of hydraulic experiments and numerical analysis were conducted by difference in places of the filling sediment. It becomes clear that the phenomenon changes greatly depending on the filling positions. The bank erosion width in the case of Filling sediment at the upper half part of the pool becomes wider than other cases.
言語 en
書誌情報 ja : 土木学会論文集B1(水工学)

巻 74, 号 5, p. I_379-I_384, 発行日 2018
ISSN
収録物識別子タイプ PISSN
収録物識別子 2185-467X
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.2208/jscejhe.74.5_I_379
論文ID(NAID)
関連識別子
識別子タイプ NAID
関連識別子 130007757853
出版者
言語 ja
出版者 土木学会
著者版フラグ
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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