| Project/Area Number |
63550464
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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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 | Kyushu University |
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Principal Investigator |
ESAKI Tetsuro Kyushu Univ., Faculty of Eng., Associate Professor, 工学部, 助教授 (40038609)
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| Co-Investigator(Kenkyū-buntansha) |
KIMURA Tsuyoshi Kyushu Univ., Faculty of Eng., Research Associate, 工学部, 助手 (30161566)
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| Project Period (FY) |
1988 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1989: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1988: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | Rock Mechanics / Shear Test / Permeability / Nuclear Disposal / Laboratory Test / Underground Utilization / Discontinuity / 岩の透水試験 / 地下の透水 / せん断特性 / 透水モデル |
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| Research Abstract |
The subject of underground utilizations that is representative of radioactive waste disposal has enhanced the importance of investigating water flow characteristics of fractured rock masses.
From this point of view, this research describes the characteristics obtained by using a new testing apparatus which has developed to enable shear-flow coupling test. Each granite specimen, 80・100・120mm, used for the tests includes an artificially made fracture parallel to the lift plane of rock. It is found from the coupling test that the permeability of the specimens decreases with increasing normal stress and increases so much with shear displacement. Such shear-flow characteristics agree with some predicted ones, taking account of the theoretical and physical apertures, and roughness of a fractured surface.
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