Quasi-Continuous Explosive Concepts for Hard Rock Excavation

Abstract

The use of continuous or quasi-continuous systems for pulsed explosion rock excavation, can have major advantages over conventional methods. This report considers the feasibility and applicability of such an explosive system concept. The optimum properties of the explosive system, the effectiveness of the explosive rock interactions and the interactions between successive explosions were determined in tests on granite and concrete. A prototype multiple charge launcher was designed, built and tested to demonstrate the feasibility of a multiple feed system. The quasi-continuous explosive projectile launcher appears to be capable of unusually high drilling rates into hard rock. Recommendations are made for application of the launcher system to actual hard rock excavation conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1973
Accession Number
AD0765792

Entities

People

  • Nikolai A. Louie

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast
  • Detonations
  • Detonators
  • Dynamic Tests
  • Electric Detonators
  • Electronic Circuits
  • Electronic Equipment
  • Explosions
  • Explosive Charges
  • Explosive Trains
  • Explosives
  • Flow Rate
  • High Explosives
  • High Pressure
  • Impact Point
  • Plastic Explosives
  • Time Intervals

Readers

  • Explosive Engineering.
  • Pulsed Power and Plasma Physics.
  • Systems Analysis and Design