Research Article
A Practical Swelling Constitutive Model of Anhydrite and Its Application on Tunnel Engineering
Table 6
The basic material parameters for both rock stratums and support structure employed for simulation analysis.
| | Rock stratum | Elasticity modulus (GPa) | Poisson’s ratio | Density (g/cm3) | Friction angle (°) | Cohesive force (MPa) |
| | Limestone | 24.50 | 0.27 | 2.70 | 45.28 | 9.85 | | Anhydrite | 5.00 | 0.28 | 2.70 | 40.00 | 0.08 | | Rock bolt | 170.00 | 0.30 | 7.80 | — | — | | Initial liner | 31.00 | 0.17 | 2.50 | 54.90 | 3.18 |
|
|
