Investigation of blast design parameters from the point of seismic signals


Uyar G. G.

INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT, cilt.24, ss.80-90, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 24
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1080/17480930902884965
  • Dergi Adı: INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT
  • Sayfa Sayıları: ss.80-90

Özet

This study shows three-component particle vibration records from a number of empty set165 mm blast holes, single or double, of different depths and with varying charge contents. In this concept, effects of (1) hole-depth, (2) surface delays, (3) inter-hole delays and (4) free-face on the seismic signal were investigated. The pulse from one hole or charge was used as a signature and by linear superposition the composite signal from two holes or charges were constructed and compared with the measured signal. From these comparisons, a number of conclusions were drawn. Those conclusions provide the way for better mining solutions in terms of good fragmentation and minimum vibration.