| Webster's Online Dictionary |
| Domain | Definition | ||
| Mining | A hole drilled in a material to be blasted, for the purpose of containing an explosive charge. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
| Expressions | Domain | Definition | |
| Blasthole charger | Mining | A portable unit consisting of a prilled explosive reserve tank feeding into an air-activated loading tube. The equipment should be grounded to guard against buildup of static electricity and possible accidental explosive detonation. The blasthole charger permits rapid loading of prilled explosives into blastholes drilled in any direction. (references) | |
| Blasthole drill | Mining | Any rotary, percussive, fusion-piercing, churn, or other type of drilling machine used to produce holes in which an explosive charge is placed. Syn: shothole drill. (references) | |
| Blasthole driller | Mining | See: churn-drill operator. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||