Research Article
Analysis and Application on Controlling Thick Hard Roof Caving with Deep-Hole Position Presplitting Blasting
Table 5
Rock mechanical parameters.
| | Density (kg/m3) | Elasticity modulus (GPa) | μ | Yield strength (MPa) | Tangent modulus (GPa) | Hardening coefficient | Failure strain | C (s) | P value |
| | 2630 | 56.6 | 0.25 | 68.2 | 81.3 | 1.25 | 0.08 | 2.5 | 4 |
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