ISSN 2079-8490

Electronic scientific journal "Scientists notes PNU"

Pacific national university

Syachin S. Y. , Shevkun E. B.

FEATURES OF EXPLOSIVE LOOSENING WITH MINIMAL DISPLACEMENT OF ROCKS

The dynamics of development of industrial mass explosion in the intervals of delay 150x200. The passage of an increased number of voltage waves through the zones of individual borehole charges is established if the time for the formation of the shielding surface from previous explosions is taken into account. Due to the repeated effects of stress waves in the stretching stage, the fracturing of the rock mass increases

Keywords: mass explosion; preliminary destruction; borehole charges; the intervals of delay