Research Article
Semianalytical Solution and Parameters Sensitivity Analysis of Shallow Shield Tunneling-Induced Ground Settlement
Table 1
Physical and mechanical parameters of foundation soils.
| Number | Name | Weight/ kN/m3 | Sr | | | Standard penetration/N | Fast shear test | UU | Modulus /MPa | Poisson’s ratio | Layer height/m | Cohesion c/kPa | Internal friction angle/° | Cohesion c/kPa | Internal friction angle/° |
| ① | Miscellaneous fill | 16.6 | / | / | / | / | 10 | 8 | 10 | 5 | / | / | 2.4 | ③1③ | Silt-silty clay | 19.3 | 78.12–96.3 | 0.61–0.77 | 7.2–11.8 | 13–10 | 30.8 | 15.7 | 26.7 | 17.2 | 6.6–12.7 | 0.30 | 5.4 | ④ | Silty clay | 20.1 | 96.5 | 0.59 | 11.9 | 10 | 35 | 9 | 30 | 15 | 5.5–10 | 0.31 | 4.0 | ⑥ | Silty clay | 19.8 | 96.2 | 0.71 | 13.3 | 15 | 46 | 15 | 30 | 15 | 8.3–11.9 | 0.29 | 4.4 | ⑥ | Silt | 20.2 | 95.3 | 0.58 | 8.4 | 17 | 33 | 28 | 15 | 15 | 9.3–17.1 | 0.30 | 6.0 | ⑦1⑦ | Silty sand | 19.9 | | | | 54–48 | 0 | 32.8 | | | 30–40 | 0.28 | 3.6 | ⑦ | Rounded gravel | 21.1 | | | | | 0 | 40 | | | 60 | 0.25 | 1.4 | ⑧ | Silty clay | 19.7 | 96.4 | 0.73 | 12.9 | 25 | 54 | 5 | | | 9.2–13.6 | 0.30 | 5.0 | ⑨ | Silty fine sand | 20.6 | | | | 52 | 0 | 30 | | | 35 | 0.27 | 1.6 | ⑩ | Silty clay | 19.7 | | | | | 20 | 20 | | | 8.7–13.1 | 0.29 | 6.2 |
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