Research Article
Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft
Table 3
Numerical calculation parameters of shotcreting.
| Elasticity modulus/GPa | Poisson’s ratio | Cohesion/MPa | Internal friction angle/° | Thickness/mm | Normal stiffness/108 N·m−3 | Tangential stiffness/108 N·m−3 |
| 26 | 0.21 | 3.2 | 51 | 100 (floor) 300 (side and roof) | 8 | 8 |
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