在有色金属矿山采掘工作中,小断面巷道的掘进量所占比重較大。但是由于缺少适用的装运机械設备,所以在掘进这种巷道时,都是手工装岩和推車,不仅劳动强度大,而且需用大量的劳动力(約占井下工人的20%左右)。同时,所用的工时較长,約占每一掘进循环时間(一般为8小时)的50%以上,这样,小断面巷道的月掘进速度只有30米左右。因此,装岩工作机械化是一件非常重要的工作。 In the mining of non-ferrous metal mines, the proportion of small-section roadway tunneling accounts for a large proportion. However, due to the lack of suitable shipping machinery and equipment, tunnels and rockets are hand-rocked and trolley-driven. Not only are they labor-intensive, they also require a large amount of labor (about 20% of the underground workers). At the same time, the working hours used are longer, accounting for more than 50% of each tunneling cycle time (usually 8 hours), so that the monthly driving speed of the small section roadway is only about 30 meters. Therefore, rock mechanization is a very important task.