Research Article
Rock Mechanics Characteristics Test and Optimization of High-Efficiency Mining in Dajishan Tungsten Mine
Table 1
Summary of main lithologic physical and mechanical parameters.
| Rock classification | Tensile strength (MPa) | Compressive strength (MPa) | Elastic modulus (GPa) | Poisson’s ratio () | Cohesion force (MPa) | Internal friction angle (°) |
| Surrounding rock | 7.21 | 166.99 | 52.85 | 0.22 | 6.9051 | 29.382 | Ore rock | 4.08 | 74.26 | 25.44 | 0.23 | 15.427 | 11.497 |
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