美国矿山局的研究表明,露天采矿设备维修工伤事故量占露天采矿工伤事故量的三分之一强(34.1%)。在1978～1984年期间,汽车和动力铲这两种设备的维修工伤事故占整个露天采矿机动设备维修工伤事故的一半以上。从这类设备的维修工作记录来看,最危险的工伤事故是发生在设备内部维修上。本文提出了减少这些工伤事故危险的一些建议。 Research by the US Bureau of Mines shows that the number of accidents involving repairs to open-pit mining equipment accounts for more than one-third (34.1%) of the open-cut mining accidents. During the period 1978-1984, repairs for work-related injuries caused by both vehicles and power shovels accounted for more than half of the total number of work-injury accidents caused by open-pit mining equipment maintenance. Judging from the record of maintenance work on such equipment, the most dangerous work-related accident occurred in the maintenance of the equipment. This paper presents some suggestions to reduce the risk of these accidents.