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苏联东北部一些矿区的电气爆破,劳动量大,爆破网路敷设复杂,不够可靠,因而拒爆概率很大,往往成为导致伤亡危险事态的原因。极北地区各露天矿绝大多数的拒爆,大部分是爆破器材可靠性不高和爆破网路敷设质量差所致。为此制定了提高电爆网路可靠性的方法和技术手段,这对于每年寒冷季节难于敷设电爆网路的极北地区进行大爆破来说是极其现实的。当以小深孔装药(深4米,直径105毫米,装药量15～20公斤)来剥离泥煤时,每一次爆破的药包量达到两千
In some northeastern Soviet Union mines, there is a large amount of labor involved in the electrical blasting and the complicated construction of the blasting network which is not reliable enough. Therefore, the probability of refusing explosions is very high and often leads to the dangerous situation of casualties. The vast majority of northern open pit mine refused to blast, most of the reliability of blasting equipment is not high and blasting network laying poor quality. Therefore, methods and technical means to improve the reliability of electric burst network have been established. This is very realistic for the large-scale blasting in the extremely northern region where it is difficult to lay electric burst network every year in cold season. When peeled off peat with a small deep-hole charge (4 meters deep, 105 millimeters in diameter and 15 to 20 kilograms charged), the number of kits per burst reached 2,000