Research Article
Nonlinear Analysis of the Thaw Settlement in Ice-Rich Embankments
Table 1
The thermal and mechanical parameters at different layers.
| | Lithology | Embankment fill | Silty clay | Clay | Mudstone |
| | Strata range (m) | 0–3 | 3–6.5 | 6.5–9.5 | 9.5–20 | | Density (kg/m3) | 2050 | 1850 | 2120 | 2070 | | Water content (%) | 10 | 40 | 50 | 15 | | Soil specific heat (J/kg·°C) | 2183 | 1874 | 1953 | 2191 | | Permafrost specific heat (J/kg·°C) | 1693 | 1283 | 1337 | 1907 | | Unfrozen conductivity (W/m·°C) | 1.71 | 1.10 | 1.08 | 0.96 | | Frozen conductivity (W/m·°C) | 1.31 | 1.90 | 1.80 | 0.91 | | Compression modulus (MPa) | 1.65 | 0.35 | 0.26 | 5 | | Initial compression modulus (MPa) | — | 0.17 | 0.15 | — | | Poissonʼs ratio | 0.25 | 0.30 | 0.30 | 0.25 | | Permeability (m/s) | 1.00E − 07 | 1.00E − 07 | 7.00E − 09 | 5.00E − 09 |
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