MODEL STUDIES OF FRAGMENTATION BY EXPLOSIVES

MEASUREMENT OF THE SIZE DISTRIBUTION OF ROCK PARTICLES PRODUCED BY EXPLOSIVE CHARGES SHOULD INDICATE THE RELATIVE EFFECTIVENESS OF ANY BLASTING DESIGN. SUCH DATA, ALTHOUGH COMMONLY USED TO OPTIMIZE ROCK BREAKAGE IN MINERAL PROCESSING, HAVE NOT APPARENTLY BEEN USED TO OPTIMIZE THE EXPLOSIVE ROCK BREAKAGE PROCESS. THE PAPER DESCRIBES THE RESULTS OF INVESTIGATIONS INTO THE SIZE DISTRIBUTION OF PARTICLES PRODUCED BY BLASTING IN SMALL SCALE MODELS. CRATER TESTING TECHNIQUES WERE USED WITH THE CHARGE LOCATED AT VARYING DISTANCES FROM THE SURFACE. A METHOD OF ANALYSIS HAS BEEN DEVELOPED TO DESCRIBE THE PARTICLE SIZE DISTRIBUTION IN TERMS OF THE GEOMETRY AND SIZE OF THE EXPLOSIVE CHARGE. THE SIGNIFICANCE OF THESE RESULTS TO FULL-SCALE BLASTING OPERATIONS IS DISCUSSED IN RELATION TO THE MODELLING PARAMETERS USED IN THE EXPERIMENTS. /AUTHOR/

  • Authors:
    • Just, G D
    • Henderson, D S
  • Publication Date: 0

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Filing Info

  • Accession Number: 00230450
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Nov 14 1973 12:00AM