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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