Research Article
Ground Response and Mining-Induced Stress in Longwall Panel of a Kilometer-Deep Coal Mine
| Property | Density | Bulk modulus | Shear modulus | Cohesion | Friction | Tensile strength | a | b | c | (kg/m3) | (GPa) | (GPa) | (MPa) | (°) | (MPa) | (MPa) | — | (MPa) |
| Value | 2000 | 1.2 | 0.6 | 0 | 30 | 0 | 60 | 15 | 20 |
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