Guides·
A glossary of drill & blast and mining terms
Short definitions of the main drilling and blasting terms.
Main terms
- Drill & blast — drilling and blasting works
- Round — the section advanced in one cycle
- Pattern — spacing between holes and rows
- Delay — the initiation gap between holes
- Fragmentation — the spread of fragment sizes after a blast
- Oversize — fragments larger than the allowed size
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