Table 3 Different stress path loading schemes (CU test).
Stress path | Consolidation method | Consolidation process (kPa) | K0 value | Shearing process | Shear rate | |
|---|---|---|---|---|---|---|
Consolidation confining pressure final value | ||||||
P = (σ1 + 2σ3)/3 | q = σ1 − σ3 | |||||
CTC | Isobaric consolidation | 300 | 0 | k0 = 1 | ∆σ3 = 0; ∆σ1 > 0 | ∆q = 0.6 kPa/min |
400 | ||||||
500 | ||||||
TC | 300 | ∆σ3 < 0; ∆σ1 > 0 | ∆q = 0.6 kPa/min | |||
400 | ||||||
500 | ||||||
RTC | 300 | ∆σ3 < 0; ∆σ1 = 0 | ∆q = 0.6 kPa/min | |||
400 | ||||||
500 | ||||||
