Evaluation of chemical influences on rocks dependent on stress and temperatures and development of coupled models

• Project/Area Number: 20760315
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Geotechnical engineering
• Research Institution: Ehime University
• Principal Investigator: YASUHARA Hideaki Ehime University, 大学院・理工学研究科, 准教授 (70432797)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 岩盤 / 不連続面 / 透水特性 / 鉱物溶解 / 温度

Research Abstract

A series of flow-through experiments has been conducted using granite fractures at confining pressures and temperatures prescribed. The output reveals that the evolution in fracture permeability is strongly dependent on the stresses and temperatures exerted. The model developed in this work relatively well-replicates the actual measurements of the fracture permeability.

Research Products

• [Journal Article] 力学-化学連成概念モデルによる花崗岩不連続面の透水・物質輸送経時解析 (2009)
  • Author(s): 安原英明, 木下尚樹, Dae Sung Lee, 中島伸一郎, 岸田潔
  • Journal Title: 土木学会論文集C 65 Pages: 41-52
  • NAID: 130004468315
• [Journal Article] 力学-化学連成概念モデルによる花崗岩不連続面の透水・物質輸送経時解析 (2009)
  • Author(s): 安原英明
  • Journal Title: 土木学会論文集C 65 Pages: 41-52
  • NAID: 130004468315
  • Peer Reviewed
• [Journal Article] Compaction of a rock fracture moderated by competing roles of stress corrosion and pressure solution (2008)
  • Author(s): Yasuhara, H., D. Elsworth
  • Journal Title: Pure Appl. Geophys. 165 Pages: 1289-1306
• [Journal Article] Compaction of a rock fracture moderated by competing roles of stress corrosion and pressure solution (2008)
  • Author(s): Hideaki Yasuhara
  • Journal Title: Pure and Applied Geophyics 165 Pages: 1289-1306
  • Peer Reviewed
• [Presentation] 温度・Phを制御した花崗岩のフロースルー溶解試験 (2010)
  • Author(s): 川下慧
  • Organizer: 第39回岩盤力学に関するシンポジウム
  • Place of Presentation: 土木学会(東京都)
  • Year and Date: 2010-01-07
• [Presentation] Predicting temporal change of fracture permeability in granite via chemical-mechanical coupling model (2009)
  • Author(s): H. Yasuhara, S. Nakashima, K. Kishida
  • Organizer: Proc. 22nd KKCNN Symposium on Civil Engineering
  • Place of Presentation: Chiang Mai, Thailand
  • Year and Date: 2009-11-02
• [Presentation] Predicting temporal change of fracture permeability in granite via chemical-mechanical coupling model (2009)
  • Author(s): 岸田潔
  • Organizer: The 22nd KKCNN Symposium on Civil Engineeering
  • Place of Presentation: The Imperial Mae Ping Hotelチェンマイ(タイ)
  • Year and Date: 2009-11-02
• [Presentation] 熱・水・応力・化学連成現象を考慮した岩盤不連続面の透水・物質輸送解析 (2009)
  • Author(s): 安原英明, 木下尚樹, 中島伸一郎, 岸田潔
  • Organizer: 日本鉱物科学会2009年年会総会
  • Place of Presentation: 札幌
  • Year and Date: 2009-09-08
• [Presentation] 熱・水・応力・化学連成現象を考慮した岩盤不連続面の透水・物質輸送解析 (2009)
  • Author(s): 安原英明
  • Organizer: 日本鉱物科学会2009年年会総会
  • Place of Presentation: 北海道大学(北海道)
  • Year and Date: 2009-09-08
• [Presentation] Evolution of fracture permeability in granite and its evaluation via coupled chemo-mechano conceptual model (2009)
  • Author(s): 安原英明
  • Organizer: The 43^<rd> US Rock Mechanics Symposium
  • Place of Presentation: Asheville Renaissance Hotel Asheville, NC(米国)
  • Year and Date: 2009-07-01
• [Presentation] Evolution of fracture permeability in granite and its evaluation via coupled chemo-mechano conceptual model (2009)
  • Author(s): Yasuhara, H., N. Kinoshita, S. Nakashima, K. Kishida
  • Organizer: Proc. 43rd US Symp. on Rock Mechs.
  • Place of Presentation: Asheville, North Carolina
  • Year and Date: 2009-06-30
• [Presentation] 花崗岩不連続面の透水実験-拘束圧・温度に起因する鉱物溶解の影響 (2009)
  • Author(s): 重永三郎
  • Organizer: 第38回岩盤力学に関するシンポジウム
  • Place of Presentation: 東京都土木学会
  • Year and Date: 2009-01-09
• [Presentation] 拘束圧および温度を制御した花崗岩不連続面の透水経時変化の実験による検討 (2008)
  • Author(s): 木下尚樹
  • Organizer: 第12回岩の力学国内シンポジウム
  • Place of Presentation: 山口県宇部市山口大学
  • Year and Date: 2008-09-02
• [Presentation] 力学-化学連成モデルによる花崗岩不連続面の透水挙動評価 (2008)
  • Author(s): 安原英明
  • Organizer: 第12回岩の力学国内シンポジウム
  • Place of Presentation: 山口県宇部市山口大学
  • Year and Date: 2008-09-02
• [Presentation] Temporal alternation of rock permeability by mechanically- and chemically-mediated dissolution: Aiming at an application to safe and long-term isolation of high level radioactive wastes (2008)
  • Author(s): Yasuhara, H.
  • Organizer: Proc. Int. Conf. Disasters and Developments
  • Place of Presentation: Kathmandu, Nepal
• [Presentation] A study of thermal behavior of the openings effected by high temperature (2008)
  • Author(s): Naoki Kinoshita
  • Organizer: The 12^<th> International Conference on Internationa 1 Association for Computer Methods and Advances in Geomechanics
  • Place of Presentation: インド, ゴア
• [Presentation] Temporal alternation of rock permeability by mechanically- and chemica lly-mediated dissolution : Aiming at an application to safe and long-termisolation for high level radioactive wastes (2008)
  • Author(s): Hideaki Yasuhara
  • Organizer: The International Conference on Disasters and Developments
  • Place of Presentation: ネパール, カトマンズ