Research Article
Unloading Creep Characteristics of Frozen Clay Subjected to Long-Term High-Pressure K0 Consolidation before Freezing
Table 7
The improved creep model parameters.
| | σc (MPa) | tc (d) | σ1 − σ3 (MPa) | σ1 − σ3 − σf∞ (MPa) | E1 (GPa) | η1 (GPa·h) | η2 (GPa·h) | e |
| | 8 | 3 | 3.5 | −0.31 | 0.239 | 1.784 | — | — | | 4.0 | 0.19 | 0.269 | 1.952 | 2.267 | 1.358 | | 4.5 | 0.69 | 0.221 | 1.568 | 2.040 | 1.135 | | 7 | 3.5 | −0.78 | 0.265 | 2.124 | — | — | | 4.0 | −0.28 | 0.273 | 2.160 | — | — | | 5.0 | 0.72 | 0.256 | 1.772 | 3.322 | 1.324 | | 14 | 4.0 | −0.48 | 0.277 | 2.310 | — | — | | 4.5 | 0.02 | 0.309 | 2.412 | 4.149 | 2.257 | | 5.0 | 0.52 | 0.292 | 2.002 | 3.703 | 1.381 | | 10 | 3 | 3.5 | −0.41 | 0.266 | 1.988 | — | — | | 4.0 | 0.09 | 0.289 | 2.076 | 2.474 | 1.601 | | 4.5 | 0.59 | 0.247 | 1.728 | 1.984 | 1.089 | | 7 | 4.3 | −0.18 | 0.304 | 2.313 | — | — | | 4.7 | 0.22 | 0.317 | 2.366 | 3.448 | 1.406 | | 5.1 | 0.62 | 0.305 | 1.980 | 3.225 | 1.340 | | 14 | 4.5 | −0.24 | 0.310 | 2.458 | — | — | | 5.0 | 0.26 | 0.339 | 2.473 | 3.841 | 1.410 | | 5.5 | 0.76 | 0.326 | 2.083 | 3.547 | 1.378 | | 28 | 4.2 | −0.85 | 0.311 | 2.486 | — | — | | 4.7 | −0.35 | 0.342 | 2.544 | — | — | | 5.2 | 0.15 | 0.374 | 2.606 | 4.545 | 2.163 |
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