禹县吕沟煤矿是县营地方矿井,开采五_2、六_4两层薄煤,煤层厚度平均为1.2米和0.9米,倾角为 13°～14°,开拓方式为片盘斜井,低沼矿井,采面作业方式为炮采、二级顶板。1961年8月接收社办时,矿井年产量仅为3万吨,20多年来坚持科学办矿、走改革挖潜道路,依靠群众、自力更生艰苦奋斗,先后对矿井进行了三次大的技术改造,使矿井生产能力到1979年已发展到36万吨以上的中型矿井,超过了省核定的年产30万吨的井型。在改造矿井生产能力的同时,又改造了巷道布置、改革了采煤方法、改革了 Lugou Coal Mine in Yu County is a local coalmine in the county camp, mining five _2, six _4 two thin coal seam thickness average of 1.2 meters and 0.9 meters, the inclination angle of 13 ° ~ 14 °, pioneering ways for the film tilt, Low marsh mine, mining operation mode for artillery mining, two roof. In August 1961, when it was received and operated, the annual output of mine was only 30,000 tons. Over the past 20 years, it has adhered to the scientific management of ore mines, took the road of reform and tapping the potential, relied on the masses and worked hard to make efforts independently, and successively carried out three major technological transformations to the mine. By 1979, the mine’s production capacity had grown to more than 360,000 tons of medium-sized mines, exceeding the provincial-approved annual output of 300,000 tons. In the transformation of mine production capacity at the same time, but also transform the roadway layout, reforming the mining method, reform