Research Article
Subway Tunnel Construction Settlement Analysis Based on the Combination of Numerical Simulation and Neural Network
Table 2
Model plate unit material properties.
| Name of the material | Natural density (g/cm³) | Compression modulus (MPa) | Angle of internal friction (°) | Cohesion (kPa) | Poisson’s ratio |
| Shield shell (70 mm thickness) | 7.72 | 210,000 | 50.00 | 20,000 | 0.28 | C50 concrete segment (300 mm thickness) | 2.49 | 35,000 | 62.63 | 4,241 | 0.16 | Shield tail void medium (grouting material) | 1.63 | 0.94 | 10.00 | 1.12 | 0.45 |
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