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An Experimental Study on Permeability of Kimachi Sandstone in Deformation and Failure Process under Deviator stress

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タイトル: An Experimental Study on Permeability of Kimachi Sandstone in Deformation and Failure Process under Deviator stress
著者: Takada, Michihiko 著作を一覧する
Fujii, Yoshiaki 著作を一覧する
キーワード: permeability
sedimentary rock
fracture
deviator stress
発行日: 2009年 5月13日
出版者: Graduate School of Engineering, Hokkaido University
誌名: Proceedings of the 3rd International Workshop and Conference on Earth Resources Technology
開始ページ: 124
終了ページ: 131
抄録: Permeability of Kimachi sandstone in deformation and failure process was investigated. Tests were carried out under a constant confining pressure of 5.0, 7.5, or 10.0 MPa with a pore pressure of 2.0 MPa. Cylindrical test specimens with a diameter of 30.0 mm and a length of 60.0 mm were used. 0.2% of axial compressive strain was applied at a time and a permeability test by the transient-pulse method was carried out at each step after 3 hour delay time to settle down deformation. This step was repeated until axial strain reached about 5.0%. The stress-strain relation was linear in low deviator stress and gradually became nonlinear as peak strength approached. The permeability decreased in the elastic region and then increased as the peak strength approached. In residual strength region, the permeability also increased at first, but it decreased after then.
記述: 3rd International Workshop and Conference on Earth Resources Technology "Stepping towards sustainable geo-resources utilization and development". 13-14 May 2009. Hokkaido University Conference Hall, Sapporo, Japan.
資料タイプ: proceedings
URI: http://hdl.handle.net/2115/40224
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 藤井 義明

 

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