Research Article
Modelling Ambient Vibration Responses Induced by Operation of Metro Train on Curved Rail Segment with Small Curvature Radius
Table 2
Parameters of soil layers and the tunnel.
| | Soil layers | Layer thickness (m) | Young modulus (MPa) | Poisson ratio | Saturated unit weight (kN/m3) | Internal friction angle φ (°) | Cohesive force C (kpa) |
| | ③-1 rock-filling | 3 | 20 | 0.30 | 19.9 | 12 | 25.3 | | ③-2 silty clay | 6 | 17 | 0.30 | 19.3 | 18 | 27.2 | | ④-1 muddy clay | 7.5 | 13.5 | 0.30 | 18.8 | 8 | 17.5 | | ④-2 silty clay | 5 | 15 | 0.30 | 18.9 | 19 | 26.0 | | ④-3 silty soil mixed with silty sand | 38.5 | 40 | 0.30 | 19.6 | 30 | 11.6 | | Tunnel lining | — | 35000 | 0.20 | 28 | — | — | | Tunnel track bed | — | 20000 | 0.20 | 21 | — | — |
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