Table 1 Physical and mechanical parameters of surrounding soils.
Soil layer type | Thickness /m | Internal friction angle/° | Poisson’s ratio | Cohesion /kPa | Elastic modulus /MPa | Unit weight /kN·m− 3 |
|---|---|---|---|---|---|---|
Miscellaneous filled soil | 2.0 | 19 | 0.40 | 9 | 2.00 | 20.0 |
Plain filled soil | 3.0 | 10 | 0.30 | 12 | 2.44 | 18.5 |
Silty clay | 6.5 | 11 | 0.31 | 21 | 6.20 | 19.2 |
Silty clay interbedded with silt and silty Sand | 2.5 | 10 | 0.31 | 12 | 4.50 | 18.4 |
Silty clay | 8.2 | 12 | 0.29 | 23 | 6.60 | 18.8 |
Alternating layers of silty fine sand, silt, and silty clay | 3.5 | 18 | 0.27 | 6 | 8.70 | 18.9 |
Silty fine sand | 7.0 | 30 | 0.29 | 0 | 15.00 | 18.6 |
Silty fine sand | 12.0 | 34 | 0.26 | 0 | 21.00 | 18.7 |
