Experiment Study of Lateral Unloading Stress Path and Excess Pore Water Pressure on Creep Behavior of Soft Soil

Table 4

The comparison of axial strain at different confining pressures under the same axial unloading stress.

Excess pore water pressure (kPa)	Axial unloading stress (40 kPa)		εA4/εB2	Axial unloading stress (60 kPa)		εB3/εC2
	σ3c = 100 kPa	σ3c = 200 kPa		σ3c = 200 kPa	σ3c = 300 kPa
	A4 maximum strain (εA4)	B2 maximum strain (εB2)		B3 maximum strain (εB3)	C2 maximum strain (εC2)
0	1.03	0.19	5.42	0.57	0.26	2.19
20	3.45	0.27	12.78	0.71	0.30	2.37
40	6.78	0.32	21.19	0.92	0.32	2.88
60	14.94	0.38	39.31	1.13	0.36	3.14