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Perimeter blasting in shaft sinking
Digger Tracing of repump (bulk) emulsion used in shaft sinking is becoming common practice in N. Canada. The idea isn't side initiation as in anfo loaded holes but destruction of a portion of the sensitizing glass or gas bubbles in the emulsion. Burden and spacing are constantly reviewed as...- boomer
- Post #5
- Forum: Mining engineering
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Perimeter blasting in shaft sinking
does anyone have experience with perimeter blasting in u/g shaft sinking by tracing re-pump emulsion loaded holes with detonating cord? 25 or 50 gn- boomer
- Thread
- Replies: 6
- Forum: Mining engineering
