论文部分内容阅读
南非金矿每年大概要掘进1000公里的巷道。由于当地廉价的劳动力以及从其它地方引进的机械设备不适用于当地的坚硬与磨蚀性强的石英岩,直至两年前,凿孔机械化还是不经济的。英美金矿公司技术改进服务组织计划组在各凿岩机与钎杆制造商的合作下组成的计划工作队己参与了改进岩巷掘进凿孔机械化设备的工作。经过两年半的凿岩机、钎杆与钎头的广泛试验与改进,其中遇到的许多问题已得到解决,并且安装在液压台车上的导轨式风动凿岩机与液压凿岩机都在各个金矿逐渐地应用于生产。本文叙述了这种改进工作与记录下的实际效果以及凿孔与爆破的详情。
South Africa’s gold mine tunnels about 1,000 kilometers per year. Percussive mechanization was uneconomical until two years ago, due to the cheap labor in the area and the mechanical equipment imported from other places that did not work well with hard, abrasive quartz rocks in the area. The Anglo-American Gold Mine Technology Improvement Services Organization’s planning team, formed in collaboration with rock drills and drill rod manufacturers, has been involved in improving the mechanization of rock tunneling and perforation mechanization. After two and a half years of extensive testing and improvement of rock drills, drill rods and drill bits, many of the problems encountered have been solved and the rail-mounted rock drills and hydraulic rock drills mounted on hydraulic trolleys have gradually evolved at various gold mines Used in production. This article describes the actual results of this improvement work and record as well as the details of perforation and blasting.