Research Article
Numerical Study on the Disturbance Effect of Short-Distance Parallel Shield Tunnelling Undercrossing Existing Tunnels
Table 2
Shield segment parameters.
| | Subway tunnel | Lining concrete grade | Modulus of elasticity (GPa) | Poisson’s ratio | Density (kg·m3) | Diameter (m) | Lining ring width (m) | Lining thickness (m) |
| | Line 1 | C35 | 27 | 0.20 | 2500 | 6.0 | 1.2 | 0.3 | | Line 5 | C50 | 35 | 0.17 | 2700 | 6.0 | 1.5 | 0.3 |
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