Table 2: Statistical properties of shear strength parameters.

Soil propertyMeanStandard deviationCOV (%)PDFScale of fluctuation

Cohesion, (kPa)14.74.4130Log-normal0.1D, 0.2D
Friction angle, (°)17.93.5820Log-normal0.4D, 0.8D
Permeability, (m/s)1.64 × 10−68.19 × 10−750Log-normal1.5D, 3.0D