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FINGERING FLOW IN HOMOGENEOUS SANDY SOILS UNDER CONTINUOUS RAINFALL INFIL TRATION
https://sucra.repo.nii.ac.jp/records/13745
https://sucra.repo.nii.ac.jp/records/13745d4ee8e5b-67f6-40ef-baa0-c0800a770217
名前 / ファイル | ライセンス | アクション |
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A1003889.pdf (1.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-10-22 | |||||
タイトル | ||||||
タイトル | FINGERING FLOW IN HOMOGENEOUS SANDY SOILS UNDER CONTINUOUS RAINFALL INFIL TRATION | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fingering flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | hydraulic conductivity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | infiltration | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | suction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | unsaturated soil | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | wetting front (IGC : D4E7) | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
川本, 健
× 川本, 健× 宮崎, 毅 |
|||||
著者 ローマ字 | ||||||
KAWAMOTO, KEN | ||||||
著者 ローマ字 | ||||||
MIYAZAKI, TSUYOSHI | ||||||
著者 所属 | ||||||
埼玉大学工学部 | ||||||
著者 所属(別言語) | ||||||
Faculty of Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
Graduate School of Agricultural and Life Sciences, The University of Tokyo | ||||||
書誌情報 |
地盤工学会論文報告集 en : Journal of the Japanese Geotechnical Society : soils and foundation 巻 39, 号 4, p. 79-91, 発行日 1999 |
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年月次 | ||||||
1999-8 | ||||||
出版者名 | ||||||
出版者 | 社団法人地盤工学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13417452 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In order to establish a physical model leading to stable (uniform) and unstable (non-uniform fingering) flows in unsaturated soils, two-dimensional tests on continuous rainfall infiltration were carried out by changing not only the initial water content (air dry, 0.5%, 1.0%) but also the rainfall intensity (15,30,180 mm/h). The physical mechanism of fingering flow was discussed on the basis of precise suction measurements inside and outside the fingers. The results show that wetting fronts developed in unsaturated sandy soils can be classified into three types ; 1) fingering flow, 2) wavy front, and 3) plane front. Two types of fingering flow can be further distinguished by the difference of the swelling velocity ; i. e., low-swell finger and high-swell finger flows. In each of the low-swell and high-swell fingers, a core and a swelling zone are developed while a finger is growing. Based on suction measurements inside them, it is found that the water condition in the finger core changes from wetting to drying processes while the water condition in the swelling zone remains in the wetting process. This hysteretic behavior in the core can be explained by the moisture distribution changing along a finger from tip to tail. Fingers swell when water moves from a finger core to surrounding dry sand. Such a swelling process is mainly controlled by the hydraulic conductivity for the wetting process at a finger tail. | |||||
注記 | ||||||
内容記述タイプ | Other | |||||
内容記述 | rights: 社団法人地盤工学会 rights: 本文データは学協会の許諾に基づきCiNiiから複製したものである relation: IsVersionOf: http://ci.nii.ac.jp/naid/110003945709/ |
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版 | ||||||
[出版社版] | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2009-10-08 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1003889 |