1987 Fiscal Year Final Research Report Summary
Fundamental study on deformabiliy of mine pillar
| Project/Area Number |
60420043
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| Research Category |
Grant-in-Aid for General Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
資源開発工学
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| Research Institution | Kumamoto University |
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Principal Investigator |
OKAMURA Hiroshi Kumamoto University, Professor, 工学部, 教授 (40040373)
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| Co-Investigator(Kenkyū-buntansha) |
OBARA Yozo Kumamoto University, Lecturer, 工学部, 講師 (50135315)
KANEKO Katsuhiko Kumamoto University, Associate Professor, 工学部, 助教授 (20128268)
AKIMOTO Masatugu Kyushuu Toukai University, Professor, 工学部, 教授 (40105929)
OOMI Mitito Kumamoto University, Professor, 工学部, 教授 (30040405)
SUGAWARA Katsuhiko Kumamoto University, Professor, 工学部, 教授 (60109668)
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| Project Period (FY) |
1985 – 1987
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| Keywords | Mine pillar / Deformabilty / Crack theory / Stress measurment / 応力測定 / 球状孔底ひずみ法 |
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| Research Abstract |
A new theory of rock deformability based on the crack theory is presented, and practical procedures for estimation of in-situ rock deformability from scanline survey, seismic exploration and joint roughness investigation is presented.
As an application of the new theory, a series of experimental studies on the elastic moduli of rock mass is performed. From reasonable agreement between experimental values and theoretical ones, it is concluded that the theory proposed has a promise to estimate rock deformability.
A new technique named hemispherical ended borehole technique is presented to measure the complete state of in-situ rock stress in a single borehole.
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