EXPLOSIVE BLASTING DEVICE AND EXPLOSIVE BLASTING METHOD

摘要

PURPOSE: A device and a method for blasting explosive are provided to minimize construction pollution by substantially reducing vibration, noise and cracks through sympathetic propagation distance using combustion time difference and spacer and easily perform blasting by concentrating explosion force onto face during explosive blasting. CONSTITUTION: The explosive blasting device comprises a housing(10) which is longitudinally formed so that the housing(10) is cut to a necessary length before being used, and at one side of which an opening part(11) is formed so that the opening part(11) is connected to the outside; stoppers(40,40a) inserted into upper and lower parts of the opening part(11) to easily perform loading stemming in drilled holes and reduce impact energy discharged from the upper and lower parts of the opening part(11) at the same time; explosives(30,30a) inserted into opening parts inside upper and lower parts of the stoppers(40,40a); and a spacer(20) inserted into an opening part between the explosives(30,30a) to lengthen loading length and expand blasting stress projecting area using sympathetic propagation distance at the same time.