论文部分内容阅读
塑料导爆管非电起爆系统(以下简称非电系统)是七十年代研究成功的一项崭新的爆破技术。今年8月,我矿在井下各爆破作业试用的基础上,在一采场1300中段410采场应用该非电系统,于8月20日成功地进行了一次深孔大爆破,共爆破深孔522个,深孔总长度5440米,装药量14.8吨,崩矿量7.4万吨。爆破效果良好。一、爆破区简况此次爆破的410采场系短纤维型矿脉。矿脉节理发育,矿石稳定性差,f=4～6,厚度19
Plastic detonating tube non-electric detonating system (hereinafter referred to as non-electric system) is the seventies successful research a new blasting technology. In August of this year, based on the trial of blasting operations in the mine, the mine applied this non-electric system to 410 stopes in the middle of a stope 1300 and successfully conducted a deep-hole blasting on August 20, 522, a total length of 5440 meters deep hole, the charge of 14.8 tons, 74,000 tons of ore collapses. Blasting effect is good. First, the blasting area profile The blasting 410 stope is a short fiber type veins. Development of veins joints, ore stability is poor, f = 4 ~ 6, the thickness of 19