Research Article
Analytical Solution for Circular Tunnel under Obliquely Incident P Waves considering Different Contact Conditions
Table 1
Physical parameters of the ground.
| | Ground cases | Density (kg/m3) | Young’s modulus (MPa) | Poisson’s ratio | Shear velocity cs (m/s) |
| | Case 1: soft soil (cs ≤ 150 m/s) | 2000 | 54 | 0.35 | 100 | | Case 2: medium stiff soil (250 m/s < cs ≤ 500 m/s) | 2300 | 900 | 0.3 | 388 | | Case 3: rock (800 m/s < cs) | 2500 | 4500 | 0.25 | 848.5 |
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