Miner

Responsibilities

• Drills holes in rock for the placement of explosives using hand-held or machine-mounted rock drills, accurately positioning and aligning holes according to the blast-hole plan.
• Loads blast holes with explosives, prepares primers and detonators, and tamps the correct quantity of explosives in each hole as directed.
• Assists in completing the blasting circuit.
• Performs pre-blasting and post-blasting functions:
  • Removes drills, pumps, hoses, hand tools, and equipment from the blast area.
  • Repositions pumps, hoses, and equipment after the blast.
  • Adds or removes utilities as directed, including:
    • Ventilation ducts and devices.
    • Air lines, water lines, communication lines, and rail.
• Prepares the site for mucking (removal of broken rock):
  • Wets the muck pile to suppress blasting fumes.
  • Scales loose material from the roof and ribs using scaling bars.
  • Adds, replaces, and repairs ventilation devices as necessary.
• Assists in the mucking cycle:
  • Tends hoses, unhooks, and hooks muck buckets.
  • Relays signals to the Hoist Operator.
• Installs short-term roof and rib support as required:
  • Installs temporary roof jacks.
  • Uses hand-held or machine-mounted rock drills to install rock bolts in the roof and ribs.
• Installs permanent roof and rib support:
  • Installs timbers, steel sets, steel liner plates, wooden or steel lagging as required.
  • Ties rebar, removes and resets concrete forms while maintaining correct alignments.
  • Places concrete using concrete buckets or concrete pumps.
• Performs all duties associated with the construction of the project that are not specifically assigned to others.