Materials | ρ/(kg/m3) | c/kPa | φ/˚ | E/GPa | μ |
Surrounding rock | 2000 | 500 | 35 | 1.5 | 0.25 |
Grouting circle | 2300 | 500 | 40 | 2 | 0.25 |
Lining | 2500 | - | - | 30 | 0.2 |