Tunnel Blast Design - hkieged.org

Shielded Burn Cut Key Features • Relief holes drilled 300mm deeper than blastholes • Cut blastholes are positioned to minimize: • Sympathetic detonation of adjoining blasthole • Dynamic pressure desensitization of explosive in adjoining

  Design, Tunnel, Blast, Detonation, Tunnel blast design, Sympathetic, Sympathetic detonation