Assessing the quality of drilling-and-blasting operations at the open pit limiting contour

Purpose. To develop a methodology for assessing the quality of drilling-and-blasting operations when setting side to final position. In this regard, it is necessary study nature deformations in near-side masses design open-pit contours and assess seismic impact blast waves accordance with damage near far zones from boundary, as well level generated vibrations. Methodology.A at limiting contour open pits developed using analysis mining-and-geological conditions rocks constituting field, in-situ surveying state sides, physical-mechanical properties host rocks, analytical studies instrumental measurements blasting effect. Findings.Based on methods, calculation seismicity coefficient field have been performed. By means measurement effect pit, data obtained mass. Based results these works, pit has developed. Originality.In work, effect, rock mass used, which characterizes degree elastic response external dynamic influence parameter that determines wave intensity distance site operations. calculation, map distribution area compiled. Using method measurements, serves determine mass, revealed. This made possible quality, based determining percentage permissible deviations face drilling quality. Practical value.The work will be used calculate safe parameters conducting can applied any mining enterprise open-cut minerals.