Figures of the Article

• Change curves of specific volume of saturated and unsaturated soils
• LC and yield loci
• Yield loci on ($p,q$) and ($p,s$) planes
• Schematic diagram of BBM model calculation under constant b (b=0) and constant-p
• Isotropic compression curves
• Relationship between stiffness parameters λ(s) and matric suction s
• Relationship between matric suction and yield net mean stress
• Critical state lines on p-q plane ($p(s)$ varies linearly with s)
• Predicted curves of BBM model at s=50 kPa
• Predicted curves of BBM model at s=100 kPa
• Predicted curves of BBM model at s=200 kPa
• Critical state lines on p-q plane (p(s) varies non-linearly with s)
• Comparison between improved BBM and BBM
• Predicted curves of modified BBM model at s=50 kPa
• Predicted curves of modified BBM model at s=100 kPa
• Predicted curves of modified BBM model at s=200 kPa