Research Article

Investigation on Parameter Calibration Method and Mechanical Properties of Root-Reinforced Soil by DEM

Table 2

DEM simulation scheme on pull-out test.

Simulate groupRoot dimensionsRoot physical para.Soil physical para.
Length (m)Diameter (m)Eroot (MPa)Troot (MPa)fricroot (no unit)Esoil (MPa)fricsoil (no unit)σvertical (kPa)

(1) Soil friction0.080.0041e111e70.02.5e80.325
0.080.0041e111e70.02.5e80.625
0.080.0041e111e70.02.5e80.925

(2) Root friction0.080.0041e111e70.12.5e80.625
0.080.0041e111e70.32.5e80.625
0.080.0041e111e70.62.5e80.625

(3) Vertical pressure0.080.0041e111e70.02.5e80.350
0.080.0041e111e70.02.5e80.375
0.080.0041e111e70.02.5e80.3100

(4) Root modulus0.080.0045e111e70.02.5e80.325
0.080.0045e101e70.02.5e80.325
0.080.0041e101e70.02.5e80.325