PARAMETER | OXIDE | TRANSITION | FRESH |
Burden (m) | 4.0 | 3.5 | 3.5 |
Spacing (m) | 4.0 | 4.0 | 3.8 |
Hole diameter (mm) | 115.0 | 115.0 | 115.0 |
Bench Height (m) | 6 | 6 | 6 |
Sub-drill (m) | 0.8 | 0.8 | 1.0 |
Pattern Type | Staggered | Staggered | Staggered |
Final Stemming (m) | 3.5 | 3.4 | 3.4 |
RBS of Blend Explosives | 142.0 | 142.0 | 142.0 |
Explosive Type (Blend - 30% ANPP & 70% Emulsion) | Emunex8000 | Emunex8000 | Emunex8000 |
Explosive density (kg/m3) | 0.0012 | 0.0012 | 0.0012 |
Relative Effective Energy | 94.7 | 94.7 | 94.7 |
Drilling Cost ($/m) | 14.25 | 14.25 | 9.69 |
Explosive Cost ($/t) | 930 | 930 | 930 |
Charge per meter, Mc (kg/m) | 12.47 | 12.47 | 12.47 |
Charge length (m) | 3.3 | 3.4 | 3.6 |
Mass per hole (kg) | 41.15 | 42.40 | 44.89 |
Mass above grade (kg) | 31.17 | 32.42 | 32.42 |
Technical powder factor (kg/m3) | 0.32 | 0.39 | 0.41 |
Actual powder factor (kg/m3) | 0.43 | 0.50 | 0.56 |