露天矿牙轮穿孔和其他作业一样,要求不断提高经济效益。本文从牙轮穿孔的经济分析,每米炮孔的最终成本的各项费用和计算公式,阐述了影响牙轮穿孔成本的主要因素。用实例论证了合理选择钻头类型,提高钻速,对降低穿孔成本的重要作用。每种钻头与每种岩层都存在一个性能最佳、成本最低的工况点。如何鉴别两者的最佳匹配及钻头使用是否合理,推荐了一种“盈亏相抵”的方法。 Open-pit cone piercing and other operations like the same, requiring continuous improvement of economic efficiency. This article expounds the main factors that affect the cost of cone penetration from the economic analysis of cone penetration and the final cost of each hole per meter and its calculation formula. An example is given to demonstrate the important role of selecting the type of drill bit and increasing the drilling rate, which can reduce the cost of perforation. There is a single point of best performance and lowest cost for each bit and each rock formation. How to identify the best match between the two and the use of drill is reasonable, recommended a “breakeven” approach.