BLASTING PATTERN DESIGN METHOD DESIGNED BY MOST SUITABLE DELAYED TIME OF ELECTRONIC DETONATOR FOR REDUCING VIBRATION AND NOISE

摘要

A low-vibration and low-noise blasting pattern design method by means of most suitable delayed time of electronic detonator is provided to increase digging efficiency and breaking grain size by applying most suitable delayed time to the tunnel explosion. A low-vibration and low-noise blasting pattern design method by means of most suitable delayed time of an electronic detonator comprises a step(110) of collecting an explosion vibration wave form through an individual delay time test explosion for each hole of the electronic detonator; a step(120) of analyzing the explosion vibration wave form through the synthesis for each time; a step(130) of deciding the most suitable delayed time having the lowest explosion vibration; and a step(140) of designing an explosion pattern by applying the decided delayed time. The individual delayed time test explosion for each hole is carried on with 200ms to 10000ms delayed time in the step of collecting the explosion vibration wave form.