Research Article
Analysis of Dynamic Damage-Induced Porosity Changes of Granites in Leaching Mining Technique Based on SHPB Test
Table 2
Dynamic mechanical properties of granites.
| | Specimen number | Length to diameter ratio | Initial wave velocity (m/s) | Striker velocity (m/s) | Strength (MPa) | Strain rate (s-1) | Number of broken rocks |
| | D33 | 1.021 | 3597 | 12.8 | 91.59 | 74.99 | 10 | | D32 | 1.034 | 3543 | 11.7 | 74.02 | 70.43 | 6 | | D57 | 1.016 | 3623 | 10.6 | 71.63 | 64.19 | 4 | | D52 | 1.025 | 3649 | 9.6 | 62.99 | 18.86 | 3 | | D23 | 1.031 | 3672 | 9.0 | 60.49 | 18.86 | 2 |
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