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非电起爆掘进天井南京石膏矿胡雨，郭鹏远，沈高明长期以来，南京石膏矿采用吊罐普通爆破法，掘进高３０ｍ回风天井。通常作法是用高电阻丝一次点燃导火索，以引爆火雷管起爆孔中药包。此法靠导火索的长短来控制各炮孔的先后起爆顺序，其炮孔（深Ｚｍ）利用率仅５０％，每...
Non-electric explosion into the well gypsum Nanjing gypsum Hu Yu, Guo Peng Yuan, Shen Gaoming Nanjing gypsum mine has long been used ordinary cannon blasting method, tunneling high 30m air return patio. The usual practice is to use a high-resistance wire ignite the fuse, to detonate the detonator fire detonator kits. This method depends on the length of the fuse to control the sequence of the blasting of the blasting, the blasting hole (deep Zm) utilization rate of only 50%, each ...