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Macroscopic mechanical parameters of materials.
| Material | Density (kg/m3) | Deformation modulus(kg/m3) | Pisson’s ratio | Angle of internal friction (°) | Cohesive force (kPa) |
|---|---|---|---|---|---|
| Lining structure | 2600 | 15.4 | 0.2 | 30 | 0.8 |
| Filling of superelevation arches | 2500 | 12.5 | 0.2 | 18 | 0.4 |
| Class V perimeter rock | 2150 | 2 | 0.35 | 20 | 0 |
