Strength Theory Model of Unsaturated Soils with Suction Stress Concept

Table 2

Parameters of SWRC of unsaturated soil and shear strength of saturated soil for predicting suction strength of unsaturated soils that underwent drying/wetting paths.

Soil types	Parameters of SWRC								Strength parameters
	𝑛	𝑆^irr𝑟𝐷	𝑎𝐷	𝑏𝐷  (kPa)	𝑆^irr𝑟𝑊	𝑎𝑊	𝑏𝑊  (kPa)	𝑑	𝑐^′  (kPa)	𝜑^′
Sand-kaolin mixture	0.470	0.055	0.566	1520.30	0.055	0.481	874.81	19620.0	8.5	26.9