国内外的采矿工作者预计,在本世纪内矿山巷道掘进不可能被岩巷掘进机全面取代,仍以传统的凿岩爆破方法为主。由于矿山凿、装、运设备的效率越来越高,因此掘进的钻眼爆破方法就成为薄弱环节。在生产实践中普遍地采用增加炮眼深度,用深眼爆破取代浅眼爆破,获得一次进尺多以提高掘进机械化的效率,节约掘进循环的辅助作业时间以提高工效。 Mining workers at home and abroad predict that in this century, roadway mining can not be fully replaced by roadheading machines, and the traditional method of rock-blasting is still the main method. As the efficiency of drilling, loading and transporting equipment is getting higher and higher, the drilling and blasting method of tunneling becomes the weak link. In production practice, it is commonly used to increase the depth of blasthole, replace deep-hole blasting with deep-blasting, obtain more footage at a time to improve the efficiency of heading mechanization, and save auxiliary work time of excavation cycle to improve work efficiency.