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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
http://hdl.handle.net/10091/11024e5dfee81-8b2f-44de-aa24-3e41bdb2a21e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Engineering13-03.pdf (2.4 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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| 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 | |||||||
| タイトル | ||||||||
| タイトル | An Experimental Study on Checking of Flow-Timbers neighbouring Check-Dam | |||||||
| 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 | |||||||
| 著者 |
佐々木, 八郎
× 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 | 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 |
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| 抄録 | ||||||||
| 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） | ||||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0037-3818 | |||||||
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| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00121228 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
