WATER HOLE AN-FO APPLY BLASTING METHOD AND DEVICE

摘要

PURPOSE: A blasting method employing AN-FO(Ammonium Nitrate Fuel Oil) explosives in a water hole and a device for charging AN-FO explosives in a water hole are provided to easily charge AN-FO explosives by inserting foaming tissue in the residual water to form a separating membrane. CONSTITUTION: A blasting method employing AN-FO explosives in a water hole comprises the steps of: removing the water flowing in a slot(10) during drilling first using an air compressor or vacuum pump, inserting foaming tissue(30) in the residual water(20) remaining in the slot so that a separating membrane is formed by the expansion of the foaming tissue, inserting priming explosives(40) to the top of the foaming tissue, charging AN-FO explosives(50) to the top of the priming explosives, tamping a material(60) at the top of the AN-FO explosives, and blasting the explosives.