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Blasting Regulations

Blasting Regulations. Regulatory Requirements for Blasting Operations. Student Learning Objectives. Be familiar with the applicable federal regulations governing blasting operations as affecting construction Be familiar with blaster qualifications. Blasting – OSHA Regulations.

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Blasting Regulations

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  1. Blasting Regulations Regulatory Requirements for Blasting Operations

  2. Student Learning Objectives • Be familiar with the applicable federal regulations governing blasting operations as affecting construction • Be familiar with blaster qualifications

  3. Blasting – OSHA Regulations 29 CFR § 1926.905 Loading of explosives or blasting agents29 CFR § 1926.906 Initiation of explosive charges -- electric blasting29 CFR § 1926.907 Use of safety fuse29 CFR § 1926.908 Use of detonating cord29 CFR § 1926.909 Firing the blast

  4. Regs continued… 29 CFR § 1926.910 Inspection after blasting29 CFR § 1926.911 Misfires29 CFR § 1926.912 Underwater blasting29 CFR § 1926.913 Blasting in excavation work under compressed air29 CFR § 1926.914 Definitions applicable to this subpart

  5. Legal Standards • 29 CFR Part 1910 - General Industry • 29 CFR Part 1926 - Construction • BATF • DOT

  6. General Provisions: • General requirements not specifically related to a particular operation or procedure • Usually broad in scope • “Do’s and Don’ts”, “Always and Nevers”

  7. Blaster Qualifications: • Knowledge and Experience • Training • Physical Ability • Evidence of Competency Certified Blaster

  8. Storage of Explosives: • Storage in Magazines • Separate Magazines for Explosives and Detonators • Separation Distances • barricaded • Un-barricaded

  9. Transporting Explosives • Requires CDL with Hazmat Endorsement • Proper Placards • No smoking, etc. • Same vehicle for explosives and detonators may be permitted • Route Plan

  10. Loading Explosives: • No operating equipment within 50 feet of loaded holes • Load only those holes intended to be fired in the next round • Warning signs posted • Check all holes for depth prior to loading

  11. Initiation of Explosives: • Connections from boreholes back to source of firing current • Survey for extraneous electricity • Solid Connecting & Lead wires • EB detonators all the same kind • Proper resistance • Leg wires shunted

  12. Initiation of Explosives - cont: • Only the Blastershall: • be in charge of the blasting machine • connect lead wires to machine • test circuits with Blasting Galvanometers • fire the shot • immediately disconnect lead wires after firing the shot

  13. Firing the Blast: • Code of signals, familiar to everyone, must be posted • Loud warning signal prior to firing the shot • Flagmen posted at every roadway passing through the blasting zone • Blaster must assure safety

  14. Post Blast Inspection: • Disconnect firing line immediately after blast • Allow sufficient time for dispersion of fumes • Blaster must verify all charges have fired before others are allowed into blast area

  15. Misfires: • Exclude all employees from danger zone • No other work except that required to clear the misfire • First attempt is to re-fire the hole • Explosives may be removed by washing out with water if re-fire doesn’t work • All non-electric misfires require 1 hr wait • Misfires handled by Blaster in charge

  16. Personal Protective Equipment: • Hard Hat • Safety Toed Shoes • Reflective Vest • Safety Glasses • Gloves • Hearing Protection

  17. Other Regulated Operations: • Underground Transportation - 1926.903 • Use of Safety Fuse - 1926.907 • Use of Detonating Cord - 1926.908 • Underwater Blasting - 1926.912 • Blasting in Excavation Work Under Compressed Air - 1926.913

  18. Summary Know your business!!!

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