Research Article
Numerical Analysis for the Caving Characteristics of Rock Mass with Inclined Joints in Caving Mining
Table 1
Calibrated parameters for the numerical model.
| | | Description | Numerical model | Magnetic ore |
| | Particle-based properties | Particle radius (cm) | 10∼15 | | | Particle density (g/cm3) | 3.37 | |
| | Flat-jointed parameters | Effective modulus (GPa) | 16.0 | | | Normal-to-shear stiffness ratio | 0.24 | | | Friction angle (°) | 5.0 | | | Friction coefficient | 0.5 | | | Tensile strength (MPa) | 0.9 | | | Cohesion (MPa) | 16.5 | |
| | Rock properties | Compressive strength (MPa) | 23.20 | 22.61 | | Young’s elastic modulus (GPa) | 28.80 | 30.00 | | Poisson’s ratio | 0.26 | 0.25 | | Tensile strength (MPa) | 0.70 | 0.69 |
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