电铲和自卸汽车的投资,约占露天矿设备总投资的80％,而其运营费约占生产成本的45～55％。本文根据1981～1983年期间,美国某些设备制造厂商和设计单位提供的资料,对露天矿电铲、汽车的运营费进行了分析归纳。虽然其指标在我国并不适用,但某些趋向仍可供参考。美国的矿山企业,对设备投资的计算办法与我国大体相同,但运营费则不同。设备运营费由固定费和操作费两大部分组成。 Electric shovel and dump truck investment, accounting for about 80% of the total investment in open-pit equipment, and its operating costs account for about 45 to 55% of production costs. Based on the information provided by some equipment manufacturers and design institutes in the United States during 1981-1983, this paper analyzes the operating expenses of electric shovels and cars in open-pit mines. Although its indicator does not apply in our country, some trends are still available for reference. The mining enterprises in the United States have roughly the same method of calculating investment in equipment as ours but their operating costs are different. Equipment operating costs by the fixed fee and operating costs of two major components.