Name of the material | Constitutive model | Elasticity modulus/ GPa | Poisson’s ratio | Apparent cohesion /MPa | Internal friction angle/˚ |
surrounding rock (A) | Moore Coulomb | 0.5 | 0.22 | 0.6 | 23 |
surrounding rock (B) | Moore Coulomb | 1 | 0.25 | 0.8 | 25 |
surrounding rock (C) | Moore Coulomb | 1.2 | 0.23 | 1.2 | 26 |
rock bolt | elasticity | 200 | 0.3 | 1.0 | 30 |