Research Article
Physical Modeling of Displacement and Failure Monitoring of Underground Roadway in Horizontal Strata
Table 1
Mechanical parameters of the engineering rock mass.
| Group | Volume weight (kN/m3) | Compressive strength (MPa) | Tensile strength (MPa) | Elastic modulus (GPa) | Poisson’s ratio | Cohesive strength (MPa) | Internal friction angle (°) |
| Diabase | 28.47 | 102.74 | 8.72 | 20.24 | 0.32 | 32 | 57 | Green schist | 27.45 | 46.96 | 4.57 | 16.82 | 0.18 | 7.7 | 54 | Coal | 18.29 | 14.82 | 0.37 | 7.20 | 0.21 | 0.48 | 48 |
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