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煤炭企业是由生产矿井所组成的，矿井的经济效益直接影响到煤炭企业的经济效益。本文通过影响矿井原煤单位成本的因素分析，借助理论单位成本模型，构筑了矿井理论经济效益的模型。
Coal enterprises are formed by the production of mines, the economic benefits of mines directly affect the economic efficiency of coal enterprises. In this paper, by analyzing the factors affecting the unit cost of mine raw coal and using theoretical unit cost model, the paper builds the model of theoretical economic benefits of mine.