Research Article
A Coupled Discrete-Finite Element Method for Shear Strength Analysis of Geogrid-Reinforced Railway Ballast
Figure 5
Numerical models of direct shear test without and with geogrid and pull-out test. (a) DEM model of direct shear test of unreinforced ballast. (b) Coupled DEM-FEM model of direct shear test of reinforced ballast. (c) Coupled DEM-FEM model of pull-out test.
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