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ABSTRACT: A discontinuum model has been developed to simulate the highly fractured rock mass around a deep level gold mine stope. The model has been used to investigate mechanisms of face bursting particularly when mining towards natural joints. Numerical simulations have been compared to a field study of face bursting and it has been shown that natural joint orientations have an effect on the potential for face bursting in deep level mines. L INfRODUCTlON Mining of tabular ore bodies causes the redistribution of the super-incumbent load carried by the in situ rock mass. At depth the stresses on the mine abutments are large and result in fracturing of the previously intact rock around the stope. The intensity, and extent of the mining induced fracture zone is a function of depth, mining, rock strength and geology.
- Africa > South Africa (0.30)
- North America > Canada (0.29)
- Geology > Structural Geology > Fault (0.72)
- Geology > Structural Geology > Tectonics > Plate Tectonics (0.71)
- Geology > Geological Subdiscipline > Geomechanics (0.67)
- Geology > Mineral > Native Element Mineral > Gold (0.49)
- Oceania > Papua New Guinea > Papuan Peninsula > Central Province > National Capital District > Petroleum Retention License 15 > P’nyang Field (0.98)
- Oceania > Papua New Guinea > Papuan Peninsula > Central Province > National Capital District > Petroleum Retention License 15 > Elk-Antelope Field (0.98)
- Oceania > Papua New Guinea > Papuan Peninsula > Central Province > National Capital District > Petroleum Retention License 15 > Angore Field (0.98)
- (9 more...)