Variability of Bimodal Soil-Water Characteristic Curves under Different Confining Pressures

Table 2

Fitting parameters of SWCC data.

Confining pressure (kPa)	0	25	50	75
AEV 1 (kPa)	10	12	20	30
AEV 2 (kPa)	40	60	90	200
Inflection point 1 (drying) (kPa)	15	20	35	50
Inflection point 2 (drying) (kPa)	106	200	300	650
Standard deviation 1 (drying)	0.5	0.6	0.65	0.75
Standard deviation 2 (drying)	1.2	1.35	1.35	1.5
Water-entry value (kPa)	500	700	1000	2000
Mode of test	Tempe cell + pressure plate	Modified triaxial	Modified triaxial	Modified triaxial