Research Article
Deformation and Failure Characteristics of the Rock Masses around Deep Underground Caverns
Table 3
Mechanical parameters of the original rock masses and the material of the physical model.
| | Types of surrounding rocks | Compressive strength (Rc) (MPa) | Tensile strength (Rt) (MPa) | Cohesion (C) (MPa) | Internal friction angle (φ) (°) | Deformation modulus (Em) (GPa) | Poisson’s ratio (μ) | Density (ρ) (kg/m3) |
| | Original rock II | 40 | 2.7 | 2.0 | 50 | 20 | 0.25 | 2400 |
| | Required simulation material | 2.0 | 0.14 | 0.1 | 50 | 1.0 | 0.25 | 1.8 |
| | Selected simulation material | 2.28 | 0.3 | 0.8 | 54 | 0.63 | 0.25 | 1.8 |
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