IMPACT OF DRILLING ANGLE ON BLASTING COSTS IN SURFACE WORKS

The removal of rock masses or their use with surface exploitation requires that this work be done at the lowest possible cost. reduction operating costs is by analyzing each action, working method, and possibility changing them, to have an impact on reducing costs. drilling angle one most important factors during blasting. By angle, we achieve a total length, amount explosives other changes blasting process which do not greatly affect cost Determining determined analytical methods comparing results applied methods. During analysis data comparison results, was performed determine change in depending it concluded for 200000 (m3) material, 356167.98 (€) can saved, applying 90° method. This from projected 63° 90°, reduces blastings about 10.69 (%).