Research Article
Vibration Response Characteristics of the Cross Tunnel Structure
Table 1
Properties of soil layers [
32].
| | Soil layers | Natural unit weight (kN/m3) | Saturated unit weight (kN/m3) | Dynamic Poisson ratio | Cohesion (kPa) | Friction angle (degree) | Dynamic elastic modulus (MPa) | Shear wave velocity (m/s) |
| | Plain fill | 17.7 | 17.9 | 0.22 | 12.0 | 10.0 | 28.0 | 185 | | New loess | 18.0 | 20.1 | 0.20 | 17.0 | 10.0 | 33.0 | 200 | | Improved soil | 22.1 | 22.1 | 0.20 | 56.3 | 45.2 | 180.8 | 250 | | Old loess | 20.5 | 20.9 | 0.25 | 30.0 | 26.0 | 46 | 230 | | Silty clay | 20.5 | 20.9 | 0.30 | 32.0 | 24.0 | 75 | 235 |
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