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  1. 060 工学部
  2. 0602 紀要
  3. 06021 信州大学工学部紀要
  4. Vol. 13

砂防ダム附近における流木阻止に関する実験的研究

http://hdl.handle.net/10091/11024
e5dfee81-8b2f-44de-aa24-3e41bdb2a21e
名前 / ファイル ライセンス アクション
Engineering13-03.pdf Engineering13-03.pdf (2.4 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2011-01-05
タイトル
タイトル 砂防ダム附近における流木阻止に関する実験的研究
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
その他(別言語等)のタイトル
その他のタイトル An Experimental Study on Checking of Flow-Timbers neighbouring Check-Dam
著者 佐々木, 八郎

× 佐々木, 八郎

WEKO 39983

佐々木, 八郎

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出版者
出版者 信州大学工学部
引用
内容記述タイプ Other
内容記述 信州大学工学部紀要 13: 59-90 (1962)
書誌情報 信州大学工学部紀要

巻 13, p. 59-90, 発行日 1962-08-01
抄録
内容記述タイプ Abstract
内容記述 Recentry in Japan, there are very often seen the destructions of many bridges and banks in flood which grow severer not only by sedimentmaterials, e. g. flow-stone and -sand, but also by float-materials, especially flow-timbers. Namely, these destructions are more intensified by the damupped backwater which is caused by flow-timbers checked by bridge piers at the peak time of a flood. The farther the river runs down, the heavier the damage becomes by flow-timbers. Therefore, if the peak time of flow-timbers can be retarded later than that of flood-discharge, the disaster on riverstructures will considerably be decreased. Accordingly, to check flow-timbers is as much important mission charged to the upper reaches of a river as to check flow-stone and -sand. The author consulted with the authorities concerned of Nagano Prefecture who have serious concerns about the above-mentioned and adopted the following proposals, A and B, as a practical plan for checking flow-timbers, and he tried a hydraulic experiment in using a model channel (see Fig. 1) to make it realize. A : a proposal to avail the sub-check-dam and set a leading gate, B a proposal to set a leading net. The results of the experiment may simply be stated as follows :A. (1) The checking-ratio=(U+W)/(T+U+V+W). Where, T :the number of the flow-timbers stopped on the bottom at the upper stream from the leading gate, U : do. drifting along the gate, V do. flowing down under the gate, W : do. caught into the pocket of the sub-check-darn. The details relating to U, V and W will be understood in Figs. 6~15 of this paper.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0037-3818
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00121228
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