Research Article
Modeling Rock Fracture Propagation and Water Inrush Mechanisms in Underground Coal Mine
Table 2
Some input parameters for the validation case.
| Fracture toughness | Mode I (MPa·m1/2) | 1.5 | Mode II (MPa·m1/2) | 3.0 |
| Fluid | Bulk modulus (GPa) | 1.0 | Density (kg·m-3) | 1000 | Viscosity (Pa·s) | |
| Rock | Young’s modulus (GPa) | 37.5 | Poisson’s ratio | 0.25 | Internal friction angle (°) | 33 | Cohesion (MPa) | 33 | Porosity | 0.1 |
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