Research Article
Study on Microscopic Roadbed Grouting Mechanism Based on CFD-DEM Coupling Algorithm
Table 1
Particle simulation parameters.
| Particle diameter (mm) | 6 | Static friction coefficient | 0.4 | Density (kg/m³) | 1920 | Poisson’s ratio | 0.28 | Gravity acceleration (m/s2) | 9.81 | Parallel bond stiffness (N/m³) | 1.50E + 06 | Normal bond stiffness (N/m³) | 1.50E + 06 | Normal critical stress (Pa) | 2.00E + 08 | Tangential critical stress (Pa) | 2.00E + 08 |
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