穿孔和爆破费用的估算是否较好地接近实际作业费用,对采矿公司及其承包单位来说,都具有重要意义。采矿公司需要精确的估算,以便从经济上估价正在进行的工程和判断承包单位的要价。承包单位需要精确的估算来保证合同的兑现。过低的估算会导致经济上的损失,过高的估算会失去竞争能力。要使估算精确,关键在于确定和考虑所有影响特定作业费用的因素。本文对于穿孔、爆破,生产和经济参数都予以定量的确定和考虑,然后应用这些参数来指导大型露天矿在生产计 Whether piercing and blasting costs are well estimated to approximate actual operating costs is of great importance to mining companies and their contractors. Mining companies need accurate estimates in order to economically evaluate ongoing projects and determine the asking prices of contractors. Contractors need accurate estimates to ensure the performance of the contract. Too low an estimate leads to economic losses, and high estimates lose the ability to compete. The key to making the estimate accurate is to identify and consider all the factors that affect the specific operating costs. This article for piercing, blasting, production and economic parameters are given quantitative determination and consideration, and then use these parameters to guide the large-scale surface mine in the production of