Unloading Creep Characteristics of Frozen Clay Subjected to Long-Term High-Pressure K₀ Consolidation before Freezing

Table 3

The steady creep rate of the frozen clay specimens (−15°C).

Specimen	Primary deviator stress		Secondary deviator stress		Tertiary deviator stress
	σ1 − σ3 (MPa)	(%·h^−1)	σ1 − σ3 (MPa)	(%·h^−1)	σ1 − σ3 (MPa)	(%·h^−1)
8 MPa-3 d	3.5	0.159	4.0	0.313	4.5	0.681
8 MPa-7 d	3.5	0.111	4.0	0.184	5.0	0.718
8 MPa-14 d	4.0	0.181	4.5	0.325	5.0	0.582
10 MPa-3 d	3.5	0.143	4.0	0.266	4.5	0.591
10 MPa-7 d	4.3	0.215	4.7	0.364	5.1	0.618
10 MPa-14 d	4.5	0.221	5.0	0.401	5.5	0.729
10 MPa-28 d	4.2	0.120	4.7	0.207	5.2	0.355