Parameter

Grey sand with silt

Red silt with sand

Brown sand with silt

Volumetric water content (%)

44.0

43.0

33.2

Bulk unit weight (kN/m3)

18.0

17.9

18.0

Dry unit weight (kN/m3)

13.7

13.7

14.7

Saturated permeability (m/s)

3.5 × 10−8

5.6 × 10−10

4.2 × 10−6

Friction angle (˚)

28.1

39.4

38.4

Apparent cohesion (kPa)

2.4

2.2

1.6

Erodibility coefficient (m3/Ns)

9.5 × 10−5

5.9 × 10−6

-

Critical shear stress (Pa)

0.29

2.35

-