Research Article
Effects of Pit-Bottom-Soil Reinforcement on the Deformation of Subway Deep Foundation Pits Based on an Improved Model
Table 4
Mechanical parameters of the soil layer.
| Name of the soil layer | Thickness (m) | γ (kN•m−3) | C (kPa) | Φ (°) | E (MPa) | |
| Miscellaneous fill | 3.5 | 18 | 6 | 12 | 6.5 | 0.2 | Muddy soil | 2.5 | 16.5 | 10.3 | 7.7 | 8.9 | 0.46 | Silt and sand | 14.6 | 15.9 | 11.9 | 9.8 | 25.9 | 0.43 | Silt and sand | 7.4 | 16.0 | 13 | 10.5 | 12.4 | 0.39 | Silty clay | 2.6 | 19.7 | 30.4 | 17.4 | 40 | 0.31 | Coarse medium sand | 4.9 | 18.5 | 3 | 30 | 70 | 0.31 | Composite soil | 3 | 18 | 133 | 15 | 93 | 0.4 |
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