AN EXPERIMENTAL STUDY ON THE RELATIONSHIP BETWEEN ENERGY FACTOR AND PERCENTAGE OF OVERSIZE ROCK ON ELECTRIC EXPLOSION MODEL

Abstract

This article has chosen and carried out a study to examine the theoretical and experimental basis of the influence of energy factor, and the number of free face in the tunnel on the proportion of oversized rock after explosion by the explosive charge in the borehole, established an empirical relationship between the percentage of oversized rocks and the energy factor under different number of free face, in order to study the completion of the tunnel rock breaking.