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  1. 会議・講演資料

川幅および派川の自律形成機構に関する安定解析

https://kitami-it.repo.nii.ac.jp/records/8060
bf62ff43-8ec1-4373-b142-9535c58df3d6
名前 / ファイル ライセンス アクション
2008-06.pdf 川幅および派川の自律形成機構に関する安定解析 (818.9 kB)
Item type 会議発表論文 / Conference Paper(1)
公開日 2016-01-28
タイトル
言語 ja
タイトル 川幅および派川の自律形成機構に関する安定解析
タイトル
言語 en
タイトル Stability Analysis on the Self-adjustment of River Width and Distributaries Formation
言語
言語 jpn
キーワード
言語 ja
主題Scheme Other
主題 安定解析
キーワード
言語 ja
主題Scheme Other
主題 川幅
キーワード
言語 ja
主題Scheme Other
主題 派川
キーワード
言語 ja
主題Scheme Other
主題 自律形成,
キーワード
言語 ja
主題Scheme Other
主題 河川地形
キーワード
言語 ja
主題Scheme Other
主題 Stability analysis
キーワード
言語 ja
主題Scheme Other
主題 River Width
キーワード
言語 ja
主題Scheme Other
主題 Distributary
キーワード
言語 ja
主題Scheme Other
主題 Self-adjustment
キーワード
言語 ja
主題Scheme Other
主題 River Morphology
資源タイプ
資源 http://purl.org/coar/resource_type/c_5794
タイプ conference paper
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 渡邊, 康玄

× 渡邊, 康玄

WEKO 44829
KAKEN - 研究者検索 00344424

ja 渡邊, 康玄

en Watanabe, Yasuharu

Search repository
抄録
内容記述タイプ Abstract
内容記述 流量と川幅の関係は、河岸満杯流量の0.5乗に比例するとするレジーム則や動的平衡状態における礫河川における側岸部の静的安定条件を用いた池田の理論式等で表されている。また、山本は、改修等によって人工的に川幅が変化された河道の応答について実際の河道データを基に解析している。しかしながら、扇状地や河口部近傍では流路の分岐が安定的に存在する場合があるが、このことについては従来の研究では説明できない。本研究では、河川の分岐について横断的な形状の安定という視点から捉え、これらの形成機構を線形安定理論を適用して解明することを試みている。線形安定解析は、中規模河床形態の発生機構を説明する手法を応用している。この結果、レジーム則を理論的に裏付ける結果が得られた。
言語 ja
抄録
内容記述タイプ Abstract
内容記述 Studies on flow regime have found that river width is proportional to the 0.5th power of maximum discharge. The relationship between river width and discharge was also expressed in a theoretical formula by Ikeda and Parker (1986) that considers static stability at the boundary of flow in a straight gravel river at dynamic equilibrium. Yamamoto examined the reaction of a river channel to artificial expansion of river width. However, previous research has not determined which factors regulate the formation of distributaries in a river's alluvial fan and near its mouth. This paper aims at clarifying the conditions under which distributaries form by performing stability analysis of the riverbed in the transverse direction. The stability analysis had been developed to model medium-scale bar formation. The study results show that flow regime is the determining factor in distributary formation.
言語 en
書誌情報 第57回理論応用力学講演会講演論文集

p. セッションID: 2D10, 発行日 2008
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://doi.org/10.11345/japannctam.57.0.141.0
権利
権利情報 c 2008 公益社団法人 地盤工学会
著者版フラグ
値 publisher
出版者
出版者 社団法人地盤工学会
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