矿井生产能力是煤矿生产建设最重要的参数之一,在一定程度上综合地反映出矿井的生产技术水平。最近二十年来,煤矿生产技术迅速发展,生产集中化程度大大提高,井型不断扩大,从六十年代初期到现在,一些主要产煤国家平均每个矿井的年产量约提高了一倍左右 Mine production capacity is one of the most important parameters of coal production and construction, to a certain extent, a comprehensive reflection of mine production technology. In the recent two decades, the technology of coal mine production has developed rapidly, the concentration of production has been greatly increased, and the type of well has been expanding. From the early 1960s to the present, the average annual output of each mine in some major coal-producing countries has been approximately doubled