Research Article
Study on Influence of Joint Distribution on Surrounding Rock Failure of an Underground Tunnel
Table 1
Microcosmic-mechanical parameters of the model.
| | Parameter | Value | Parameter | Value |
| | Minimum particle diameter (mm) | 0.3 | Contact bond gap (mm) | 0.05 | | Maximum particle diameter (mm) | 0.5 | Density (kg/m3) | 2500 | | Parallel bond tensile strength (MPa) | 22 | Contact modulus of the particle (GPa) | 10.2 | | Parallel bond cohesive force (MPa) | 56.5 | Parallel bond deformation modulus (GPa) | 16.2 | | Stiffness ratio | 1.51 | Porosity | 0.1 |
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