Research Article
Comparison of Presplit and Smooth Blasting Methods for Excavation of Rock Wells
Table 1
Physical and mechanical parameters of rock.
| | Parameter | Value |
| | Mass density (kg/m3) | 2518 | | Elastic modulus (GPa) | 25.63 | | Shear modulus (GPa) | 13.27 | | Compressive strength (MPa) | 93 | | Tensile strength (MPa) | 12.5 | | Poisson ratio | 0.28 |
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