Research Article
A Time-Dependent Double Hardening Model for Soft Rock
| | ρt0 (g/cm3) | B value (after IC) | σc′ (kPa) | Creep loading | Small strain cyclic loading | End of IC | During shearing |
| UC | 1.884 | — | — | N | Y | N | CD_100 | 1.896 | 0.95 | 100 | N | Y | N | CD_400 | 1.894 | 0.90 | 400 | Y | Y | Y | CD_800 | 1.896 | 0.86 | 800 | N | Y | Y | CD_1600 | 1.875 | 0.61 | 1600 | Y | Y | Y | CD_2700 | 1.897 | 0.79 | 2700 | Y | Y | Y |
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