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.
  |  | Parameter | Value |  
  |  | Soil |   |  | Unit weight, γ | 15.2 KN/m |  | Normal stiffness of particles, kn | 75 MN/m |  | Shear stiffness of particles, ks | 62.5 MN/m |  | Friction coefficient, μs | 1.5 |  | Particle radius, R | 0.03–0.05 m |  
  |  | Retaining wall |   |  | Normal stiffness of particles, kn | 2000 MN/m |  | Shear stiffness of particles, ks | 2000 MN/m |  | Friction coefficient, μw | 1.0 |  
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