Research Article
Experimental Investigation on the Influence of Regional Concrete Spalling on Shield Tunnel Segments
Table 3
Physical and mechanical parameters of soil.
| Parameter | c (MPa) | Φ (°) | E (MPa) | γ (kN·m−3) |
| Prototype material | 18.1∼21.9 | 7.9∼11.3 | 4.6∼6.1 | 17.2∼19.0 | Model material | 1.67 | 9 | 0.42 | 18 | Corresponding prototype value | 20 | 9 | 5 | 18 |
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