Research Article
Study on Structural Service Performance of Heavy-Haul Railway Tunnel with Voided Base
Table 2
Physical mechanics properties of model.
| Material type | Density (kg/m3) | Elastic modulus (GPa) | Poisson’s ratio | Friction Angle (°) | Cohesive force (MPa) |
| Subgrade | 2500 | 6 | 0.3 | 39 | 1 | Base slab | 2500 | 3.6 | 0.3 | 36 | 0.85 | Primary support | 2500 | 25.5 | 0.2 | 58.7 | 1.3 | Secondary lining | 2500 | 28 | 0.2 | 60 | 1.6 | Red-bed soft rock | 2150 | 3.6 | 0.3 | 33 | 0.45 |
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