Fig. 6

Shear stress–shear displacement curves with different gradations: (a) σ = 50 kPa; (b) σ = 100 kPa; (c) σ = 150 kPa; (d) σ = 200 kPa.

Shear stress–shear displacement curves with different gradations: (a) σ = 50 kPa; (b) σ = 100 kPa; (c) σ = 150 kPa; (d) σ = 200 kPa.