在地方煤矿建设高产高效矿井的潜力及途径大同市姜家湾煤矿徐世平，高建党，王占海０引言煤炭工业正处于计划经济向市场经济转变的重要时期。在新形势下，进入市场的煤炭工业只能依靠自身的实力参与市场竞争，在竞争中求生存，求发展。目前地方煤矿多数矿井存在采煤工作面... Potential and ways of building high-yield and high-efficiency coal mines in local coal mines Xu Jiaping, Gao Jian-party, Wang Zhan-hai Jiang Jiawan Coal Mine, Datong 0 Introduction The coal industry is in an important period of transition from a planned economy to a market economy. Under the new situation, the coal industry entering the market can only rely on its own strength to participate in market competition and seek survival and development through competition. At present, most coal mines in the local coal mining face exist ...