Research Article
Study of Two-Step Parallel Cutting Technology for Deep-Hole Blasting in Shaft Excavation
Table 1
Measured physical and mechanical properties of gypsum.
| | Density/(g/cm3) | Bulk density (g/cm3) | Compressive strength/(MPa) | Elastic modulus/(GPa) | Poisson’s ratio | Ultrasonic velocity (m/s) |
| | 1.46 | 1.4 | 6.5 | 0.445 | 0.3 | 3010 |
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