在矿山租隧道中,人工撬毛是劳动强度和危险性最大的工作。过去十年间对这项工作作了各种机械化尝试。Holhead设备公司研制,并由Atlas Copco推广使用的一种布洛克撬毛机,是解决这一难题的最有效的机械。研究工作是在波立登矿物公司所属矿山进行的。自1981年2月以来,装在LHD机组上的这种机械一直在使用,实现了安全和机械化撬毛,效 In mine tunnels, artificial pry hair is the most labor-intensive and dangerous work. Over the past decade, various attempts have been made to mechanize this work. A Blocklocking machine developed by Holhead Equipment and promoted by Atlas Copco is the most effective machine to solve this dilemma. The research was carried out at the mine owned by the Polytron Minerals Company. Since February 1981, the machinery installed on the LHD unit has been used to achieve safety and mechanized skidding.