Research Article
Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall
Table 2
Main mechanical parameters of surrounding rock under actual working conditions.
| | Mechanical parameters | Volumetric weight (kN/m3) | Tensile strength (MPa) | Compressive strength (MPa) | Elastic modulus (GPa) | Internal friction angle (°) | Cohesion (kPa) |
| | | 19.3 | 0.78 | 13.2 | 3.9 | 31.7 | 32.4 |
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