Research Article
The Effect of Intersection Angle on the Failure Mechanism of Utility Tunnel
Table 2
Soil parameters of each layer.
| | Soil | Mass density (kg/m3) | Elasticity modulus E (MPa) | Poisson’s ration | Internal friction angle (°) | Cohesion yield stress c (Pa) |
| | First layer | 1730 | 1.2 | 0.35 | 11 | 16000 | | Second layer | 1860 | 3.5 | 0.35 | 19 | 24000 | | Third layer | 1920 | 4 | 0.3 | 21 | 30000 |
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