ROCK BLASTING METHOD USING HALF CHARGE BLASTING

摘要

The present invention relates to a rock blasting method using half charge blasting so as to increase construction speed, to simplify operation processes, and to reduce construction costs, the method boring a blast hole so as to charge the blast hole with explosives within a range of a charge length corresponding to one half or less of the total length of the blast hole, performing primary blasting and then removing muck generated after blasting, and re-charging the blast hole with the explosives for the remaining length in the blast hole so as to perform secondary blasting.