Research Article
Study on the Effect of Rock Strength on the Macro-Meso Shear Behaviors of Artificial Rock Joints
Table 2
Numerical calculation of microscopic mechanical parameters of low-strength rock joint.
| | Particle parameters | Value | Parallel bond parameters | Value | Smooth joint properties | Value |
| | Young’s modulus (GPa) | 7.5 | Young’s modulus (GPa) | 7.5 | Normal stiffness (MPa/mm) | 57 | | Ratio of normal to shear stiffness | 1.0 | Ratio of normal to shear stiffness | 1.0 | Tangential stiffness (MPa/mm) | 14 | | Minimum particle radius (mm) | 0.5 | Normal strength (MPa) | | Friction coefficient | 0.75 | | Radius ratio | 1.66 | Shear strength (MPa) | | Bond shear strength (MPa) | 0 | | Density (kg/m3) | 2300 | | | Bond normal strength (MPa) | 0 | | Friction coefficient | 0.5 | | | | |
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