What tasks are done by Explosives Workers, Ordnance Handling Experts, and Blasters at work?

Based on survey data, tasks done by Explosives Workers, Ordnance Handling Experts, and Blasters usually include the following:

  • Compile and keep gun and explosives records in compliance with local and federal laws. (Daily, 60% of the time.)
  • Mark patterns, locations, and depths of charge holes for drilling, and issue drilling instructions. (Daily, 59% of the time.)
  • Place safety cones around blast areas to alert other workers of danger zones, and signal workers as necessary to ensure that they clear blast sites prior to explosions. (Daily, 55% of the time.)
  • Drive trucks to transport explosives and blasting equipment to blasting sites. (Daily, 50% of the time.)
  • Insert powder charges into chambers of sidewall sample-taking cylinders, and assemble cylinders, using special wrenches. (More than yearly, 50% of the time.)
  • Insert waterproof sealers, bullets, and/or powder charges into guns, and screw gun ports back into place. (Several times daily, 50% of the time.)
  • Move and store inventories of explosives, loaded perforating guns, and other materials, according to established safety procedures. (Daily, 46% of the time.)
  • Maintain inventory levels, ordering new supplies as necessary. (More than weekly, 43% of the time.)
  • Insert, pack, and pour explosives, such as dynamite, ammonium nitrate, black powder, or slurries into blast holes; then shovel drill cuttings, admit water into boreholes, and tamp material to compact charges. (Hourly or more, 43% of the time.)
  • Examine blast areas to determine amounts and kinds of explosive charges needed and to ensure that safety laws are observed. (Daily, 42% of the time.)
  • Set up and operate short-wave radio or field telephone equipment to transmit and receive blast information. (Daily, 42% of the time.)
  • Verify detonation of charges by observing control panels, or by listening for the sounds of blasts. (Daily, 41% of the time.)
  • Observe odometers, weight indicators, and instrument panels in trucks in order to position guns at predetermined points in wells. (Daily, 40% of the time.)
  • Connect gun chambers to electric detonating devices, and operate controls at panelboards, in order to detonate charges in guns or to ignite chemical charges. (More than weekly, 40% of the time.)
  • Measure depths of drilled blast holes, using weighted tape measures. (Hourly or more, 38% of the time.)
  • Connect electrical wire to primers, and cover charges or fill blast holes with clay, drill chips, sand, or other material. (Several times daily, 33% of the time.)
  • Light fuses, drop detonating devices into wells or boreholes, or activate firing devices with plungers, dials, or buttons, in order to set off single or multiple blasts. (Daily, 33% of the time.)
  • Signal hoist operators to lower torpedoes or sample-taking guns into wells and to raise equipment for sampling from blast holes after detonation. (More than weekly, 33% of the time.)
  • Repair and service blasting, shooting, and automotive equipment, and electrical wiring and instruments, using hand tools. (Daily, 33% of the time.)
  • Repair electrical instruments, using electricians' hand tools. (More than yearly, 33% of the time.)
  • Clean, gauge, and lubricate gun ports. (Daily, 33% of the time.)
  • Tie specified lengths of delaying fuses into patterns in order to time sequences of explosions. (More than weekly, 31% of the time.)
  • Place explosive charges in holes or other spots; then detonate explosives to demolish structures or to loosen, remove, or displace earth, rock, or other materials. (Daily, 30% of the time.)
  • Set up and operate equipment such as hoists, jackhammers, or drills, in order to bore charge holes. (Daily, 29% of the time.)
  • Lower perforating guns into wells, using hoists; then use measuring devices and instrument panels to position guns in correct positions for taking samples. (More than weekly, 29% of the time.)
  • Assemble and position equipment, explosives, and blasting caps in holes at specified depths, or load perforating guns or torpedoes with explosives. (Daily, 26% of the time.)
  • Cut specified lengths of primacord and attach primers to cord ends. (More than monthly, 22% of the time.)
  • Lay primacord between rows of charged blast holes, and tie cord into main lines to form blast patterns. (More than yearly, 22% of the time.)
  • Obtain samples of earth from sidewalls of well boreholes, using electrically exploding devices. (Several times daily, 20% of the time.)
  • < Back to Explosives Workers, Ordnance Handling Experts, and Blasters


    More inforamtion related to "What tasks are done by Explosives Workers, Ordnance Handling Experts, and Blasters at work?".