Research Article
Research on Ground Settlement Regularity of Soft Rock Tunnel under Ultrasmall Distance
Table 2
Parameter of numerical calculation.
| | Items | Weight (kN·m−3) | Elastic modulus (GPa) | Poisson ratio | Cohesive force (kPa) | Internal friction angle |
| | Wall rock | 18 | 1 | 0.4 | 100 | 20 | | Condulet/Pipe shed | 33 | 93 | 0.21 | — | — | | Reinforcement area | 21 | 1.4 | 0.35 | 300 | 35 | | Preliminary bracing | 25 | 28 | 0.2 | — | — | | Secondary lining | 25 | 29.5 | 0.2 | — | — |
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