1987 Fiscal Year Final Research Report Summary
Study on Higher Mining Desigh in Consideration of Complex Grometry Effect
| Project/Area Number |
60460189
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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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 | Yamaguchi University |
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Principal Investigator |
MIZUTA Yoshiaki Professor, Yamaguchi University, 工学部, 教授 (20107733)
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| Co-Investigator(Kenkyū-buntansha) |
KUNIMATSU Sunao Research Associate, Yamaguchi University, 工学部, 助手 (70356921)
SANO Osam Associate Professor, Yamaguchi University, 工学部, 助教授 (20127765)
OGINO Shoji Professor Emeritus, Yamaguchi University, 工学部, 名誉教授非常勤講師 (90035014)
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| Project Period (FY) |
1985 – 1987
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| Keywords | Prediction Calculation of Rock Behavior / Shape Effect / Displacement Discontinuity Method / Distindt Element Method / 岩盤挙動の計測 / 岩盤変位測定 / 岩盤応力測定 / 応力変化測定 |
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| Research Abstract |
The systems for quasi-three dimensional and complete three dimensional elastic analyses by Displacement Discontinuity Method were developed and those were applied to higher mining design in Yanahara Mine, Toyoha Mine, Kiwada Mine and Kokura Mine. The system to predict behavior of discontinuous rocks by Distinct Element Method, which is two dimensional but can be applied to any geometrical modelling was developed and, it was applied to analyses of quarry stability when earthquake happens.
In situ measurements of rock deformations and stresses induced by mining progress were carried out in Yanahara Mine and Kokura Mine. The roof sinkages measured in Yanahara Mine are compared with those predicted by numerical modelling. Stress changes measured in both the mines were compared each other and general responses of rock around the openings to mining progress are obtained.
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