铁法矿务局于１９５８年开发建设，现有生产矿井８对，在建井１对，年生产能力１２１５万ｔ。８对矿井均为高瓦斯矿井，其中年产３００万ｔ的大兴矿为煤与瓦斯突出矿井。小康矿为高应力、强膨胀、复合型软岩，地质条件非常恶劣。矿区的发展由于历史上的原因，曾经历了“三下四 Tiefa Mining Bureau in 1958 development and construction, the existing production of 8 pairs of mines, wells in the construction of a pair, the annual production capacity of 12.15 million t. 8 pairs of mines are high gas mines, of which annual output of 3 million t of Daxing coal and gas outburst mine. Well-off mine is high stress, strong expansion, composite soft rock, geological conditions are very poor. Due to historical reasons, the development of the mining area has experienced “three times.”