Research Article

Simplified Method for Calculating the Active Earth Pressure on Retaining Walls of Narrow Backfill Width Based on DEM Analysis

Table 1

Micromechanical properties for the DEM analysis.

ParameterValue

Soil
Unit weight, γ15.2 KN/m
Normal stiffness of particles, kn75 MN/m
Shear stiffness of particles, ks62.5 MN/m
Friction coefficient, μs1.5
Particle radius, R0.03–0.05 m

Retaining wall
Normal stiffness of particles, kn2000 MN/m
Shear stiffness of particles, ks2000 MN/m
Friction coefficient, μw1.0