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河床砂礫の透水性の測定とそれに基づく浸透特性の評価
http://hdl.handle.net/10191/23968
http://hdl.handle.net/10191/239681226861a-9484-48ae-bbb8-385dc2b4548f
名前 / ファイル | ライセンス | アクション |
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66(1)_49-55.pdf (1.3 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2013-11-13 | |||||
タイトル | ||||||
タイトル | 河床砂礫の透水性の測定とそれに基づく浸透特性の評価 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | 河床砂礫の透水性の測定とそれに基づく浸透特性の評価 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 河床砂礫 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 室内水路実験 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 水理学的平均径 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 透水性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 非線形パラメータ推定 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Riverbed sediment | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Laboratory water flume test | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Hydraulic mean radius | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Permeability | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Numerical parameter estimation | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
その他のタイトル | ||||||
その他のタイトル | Laboratory Measurement of Permeability of Riverbed Sediment and Prediction of Seepage Flow under River Weir | |||||
著者 |
森井, 俊広
× 森井, 俊広× 小越, 将仁× 鈴木, 哲也× 河合, 隆行 |
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著者別名 | ||||||
識別子 | 162628 | |||||
識別子Scheme | WEKO | |||||
姓名 | Morii, Toshihiro | |||||
著者別名 | ||||||
識別子 | 162629 | |||||
識別子Scheme | WEKO | |||||
姓名 | Okoshi, Masahito | |||||
著者別名 | ||||||
識別子 | 162630 | |||||
識別子Scheme | WEKO | |||||
姓名 | Suzuki, Tetsuya | |||||
著者別名 | ||||||
識別子 | 162631 | |||||
識別子Scheme | WEKO | |||||
姓名 | Kawai, Takayuki | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | フローティングタイプの頭首工の安定性は、固定堰下の河床砂礫を通過する浸透流による動水こう配と揚圧力分布に支配される。河床砂礫を通過する浸透流を予測するためには、その透水性を適切に評価しなければならない。しかし、河床砂礫は、最大粒径が数百mm におよぶことから、通常のφ50あるいはφ100mm のモールドを用いた透水試験ではその透水性を測定することは難しい。本研究では、大粒径粒子を含む河床砂礫の透水性の試験法を提案し、測定した透水係数に基づき、固定堰下で生じる浸透特性(動水こう配と水圧の分布)を調べるとともに、河床砂礫の透水性を規定する因子(粒径)について考察する。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Hydraulic stability of river weirs (head works) is dominated by hydraulic gradient and uplift pressure caused by seepage flow through riverbed sediment under the weir. To predict the seepage flow through the riverbed sediment, permeability or transmissibility of the riverbed sediment consisting of sand and gravel should be measured properly. As the riverbed sediment includes usually large gravel particles a few hundred millimeters in diameter, it is difficult to use the usual permeability test equipment employed in the usual soil tests to measure coefficient of permeability. In this paper, a new permeability test which employs laboratory water flume test together with numerical parameter estimation is proposed. The coefficient of permeability of the riverbed sediment is determined by the proposed permeability test, and the seepage flow through the riverbed sediment is calculated by numerical non-linear seepage analysis to investigate the hydraulic gradient and the uplift pressure under the base of the base floor. Finally, a hydraulic mean radius of the riverbed sediment is estimated from the coefficient of permeability measured, and is related to grain size distribution of riverbed sediment in order to show the particle size of sand or gravel which dominantly determines the permeability of the riverbed sediment. | |||||
書誌情報 |
新潟大学農学部研究報告 en : 新潟大学農学部研究報告 巻 66, 号 1, p. 49-55, 発行日 2013-10 |
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出版者 | ||||||
出版者 | 新潟大学農学部 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03858634 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00183393 | |||||
著者版フラグ | ||||||
値 | publisher |