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Formulation and Implementation of Effective Stress Coefficient of Rock to FEM

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タイトル: Formulation and Implementation of Effective Stress Coefficient of Rock to FEM
著者: Fujii, Yoshiaki 著作を一覧する
Dassanayake, Anjula 著作を一覧する
Alam, A.K.M.Badrul 著作を一覧する
Fukuda, Daisuke 著作を一覧する
キーワード: Rock
Effective stress coefficient
Formulation
FEM
発行日: 2016年 9月13日
出版者: 資源・素材学会=The Mining and Materials Processing Institute of Japan
誌名: MMIJ Fall Meeting 2016
巻: 2016
開始ページ: 2504
抄録: The authors tried to evaluate four types of effective stress coefficients of rock; one under hydrostatic pressure (Biot's effective stress coefficient), one for peak strength, one for residual strength and one for fractured rock. The types of rock considered were Kimachi sandstone, Bibai sandstone, Inada granite and Shikotsu welded tuff. Biot's effective stress coefficient obtained by conventional hydrostatic compression test method and the coefficient for peak and residual strengths obtained by the modified failure envelope method which was newly developed by the authors decreased with confining pressure. The effective stress coefficient for fractured rock was evaluated under hydrostatic pressure for post-failure specimens and it was slightly smaller than one. An equation which represents the coefficient by stress was derived and implemented into a FEM software. This paper explains the equation and the example of calculation results.
記述: MMIJ Fall Meeting 2016, Sept. 13-15 2016, Morioka, Japan (資源・素材2016(盛岡): 平成28年度資源・素材関係学協会合同秋季大会, 2016年9月13日~15日, 岩手大学, 盛岡市)
資料タイプ: proceedings
URI: http://hdl.handle.net/2115/67122
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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