1982年5月9日,本局落雪矿成功地进行了一次用导爆管—导爆索联合网路起爆地下中深孔的大爆破。大爆破装药量128.9吨,炮孔总数9003个,雷管6606发,导爆索90000米,本次爆破分八段一次起爆,共采下矿石42万吨。爆破作业时间(装药到起爆)只用了四十八小时,一年多以来从出矿情况看, On May 9, 1982, this year, Snowfall Mine successfully conducted a large-scale blasting of deep underground holes detonated underground with a detonating tube-detonating cable joint network. The blasting charge is 128.9 tons, 9003 blast holes, 6606 detonators and 90,000 meters detonating cord. The blasting is detonated in eight stages with a total mining volume of 420,000 tons. Blasting operation time (charge to initiation) took only 48 hours, more than a year from the mine situation,