V-CUT BLASTING METHOD WITH STAGE ADVANCED BLASTING

摘要

The present invention is to allow the other hand, prevent the over-the blasting due to intensive charges that to prevent the step-by-step advance formula V cart relates to a blasting method, blasting efficiency is lowered due to the failure of the perforation that the interval of the referee balgong, so as to remove the limit of a thousand factories due to the increased size of the crushed stone it has its purpose. The present invention is configured to achieve this by the referee is formed to a predetermined inclination angle degrees symmetrical with respect to the free surface perpendicular to the line of the Face surface balgong, giving balgong Face side auxiliary Gheshm formed symmetrically predetermined inclination angle degrees left and right relative to a vertical line ball between and giving to the lesson secondary Gheshm drilling a vertical Gheshm hole formed perpendicular to the face surface center between the ball on the same line, and the referee balgong, giving the same line as the secondary Gheshm ball and the same line on both sides of the vertical Gheshm ball balgong auxiliary Gheshm mounting the ball and the perforated low, the charges in the vertical Gheshm drilling a hole by giving to the lesson secondary Gheshm ball in the first stage, and the vertical Gheshm ball has an after loading with a two-stage secondary Gheshm ball from the vertical Gheshm ball, giving balgong inherent charge, in the configuration that comprises a step-by-step to the deep aeration. On the other hand, and drilling a vertical Gheshm hole formed perpendicular to the Face surface center between the free surface of the Face surface slope that is to be horizontally symmetrical form road predetermined inclination angle with respect to the vertical line Gheshm ball and the inclined Gheshm ball on the same line, the inclination Gheshm ball stepwise detonator in a vertical Gheshm charges the perforation that the respective inclined Gheshm ball vertical Gheshm ball punctures the same slope Gheshm ball and vertical Gheshm ball on the line in the same line both sides of the ball on loading the first stage after shallow to deep It may be formed of a configuration.