Research Article
Numerical Investigation of Damage Risks of Roadway Surrounding Rocks under Oblique Incident Dynamic Loads
Table 2
Property parameters of numerical simulation model.
| | Strata | Thickness/m | Density/(kg·m−3) | Bulk/GPa | Shear/GPa | Cohesion/MPa | Friction angle/° |
| | Main roof | 10 | 2508 | 9.34 | 6.25 | 4.5 | 39 | | Immediate roof | 6 | 2348 | 2.21 | 2.10 | 2.6 | 38 | | Coal | 23 | 1320 | 1.99 | 0.97 | 1.8 | 36 | | Main floor | 10 | 2480 | 8.21 | 5.91 | 4.3 | 39 |
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