Table 4 Basic uniaxial mechanical parameters of rock.
From: Damage and reliability analysis of double-arch tunnel without a middle pilot tunnel under blast load
Density (kg/m3) | Compressive strength (MPa) | Elastic modulus (GPa) | Cohesion (MPa) | Friction angle (°) | Poisson's ratio |
|---|---|---|---|---|---|
2491 | 71.67 | 4.723 | 18.72 | 34.84 | 0.24 |
