THE ACHIEVEMENT OF HOIE-BY-HOIE BLASTING TECHNOLOGY IN OPEN MINE MIDDLE-LONG HOLE BY HIGH-PRECISION NONEL DETONATOR

Be Reduced blasting vibration and the size of rock broken is the main topic to improve blasting technology in open mine middle-long hole blasting.In the last few years,new-type blasting apparatus appearance has brought about the technological advance of middle-long hole blastirg.The rticle intruduce the achievement of hole-by-hole blasting technology by high-strength and high-precision detonator made in our's country and the condition of the test and application in the opencut,and the quality of blasting apparatus made in our's country has been tested and verified.The analysis has be done about the mechanism of the technology and the design of blasting net and the blasting vibration and quality.