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Transmission and Redistribution of the Negative Pressure in Soil : Experimental studies on the New Subsurface Drainage Method by the Use of Negative Pressure II
https://doi.org/10.24729/00009371
https://doi.org/10.24729/00009371c147d68b-e313-4a59-984d-25bada8bdf3e
名前 / ファイル | ライセンス | アクション |
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KJ00004361043.pdf (441.7 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-08-25 | |||||
タイトル | ||||||
タイトル | Transmission and Redistribution of the Negative Pressure in Soil : Experimental studies on the New Subsurface Drainage Method by the Use of Negative Pressure II | |||||
言語 | ||||||
言語 | eng | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.24729/00009371 | |||||
ID登録タイプ | JaLC | |||||
著者 |
TEJIMA, Sanji
× TEJIMA, Sanji× OGINO, Yoshihiko× YABE, Katsuhiko× MURASHIMA, Kazuo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The previous paper presented the negative pressure drainage method. This method is to such and drain the soil water forcibily through porous materials by using the negative pressure of the water. In the present paper, experiments of a one dimensional vertical soil column and of a small scale model at the experimental field were carried out and the transmission and redistribution of the pressure in the coil were discussed. The following were made clear.(1) In vertical system, the negative pressure drainage given the pressure head Hp, negative, at the height χ has the same effects as the water table is lowered and kept at the height χ+Hp in the gravity drainage.(2) The lower the permeability of the porous material is, compared to that of the soil, the less the efficiency of the pressure transmission and drainage discharged are. From two dimensional steady-state drainage analyses, the maximum discharge is obtained employing the relation between hydraulic conductivity and anti-air permeability of the porous material.(3) For a full scale project of this drainage method on farms, technical problems of the construction and maintenance still remain to be solved. | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Bulletin of the University of Osaka Prefecture. Ser. B, Agriculture and biology. 1982, 34, p.15-23 | |||||
書誌情報 |
Bulletin of the University of Osaka Prefecture. Ser. B, Agriculture and biology 巻 34, p. 15-23, 発行日 1982-03-31 |
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書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00106812 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
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 | |||||
出版者 | ||||||
出版者 | University of Osaka Prefecture |