Research Article
Numerical Simulation of the Supporting Effect of Anchor Rods on Layered and Nonlayered Roof Rocks
Table 3
Rock mechanics parameters.
| | | Bulk modulus (GPa) | Shear modulus (GPa) | Friction angle (°) | Cohesion (MPa) | Tensile strength (MPa) | Density (kg·m−3) |
| | Stratum 1 | 5.0 | 3.1 | 29 | 2.5 | 1.9 | 2500 | | Stratum 2 | 0.55 | 0.15 | 22 | 0.5 | 0.7 | 1500 | | Stratum 3 | 0.60 | 0.20 | 22 | 0.5 | 0.7 | 1500 | | Stratum 4 | 0.60 | 0.20 | 22 | 0.5 | 0.7 | 1500 | | Stratum 5 | 0.63 | 0.23 | 22 | 0.5 | 0.7 | 1500 |
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