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砚石台矿位于南桐煤田北翼。由于受东面强大压力影响,致使地层倒转,煤层倾角、厚度变化大,顶底压频繁,隐伏构造比比皆是。故而多年来急倾斜煤层仍采用倒台阶采煤法开采。近年来,我们改革了布署,加强了安全技术措施,使工作面长度由55m 增加到120～130m,平均月产量由6～7千吨提高到11000吨,同时在煤厚2.13m、46°倾角,工作面长127m 的“2603”北段,创倒
Yan Shi Tai mine is located in the north wing of coalfield. Due to strong pressure from the east, resulting in inversion of stratum, coal seam angle, thickness changes, top and bottom pressure frequently, hidden structures abound. Therefore, steeply inclined coal seam is still used for mining over the years. In recent years, we have reformed the layout and strengthened our safety and technical measures to increase the working face length from 55m to 120-130m. The average monthly output has been raised from 6-7,000 tons to 11,000 tons. At the same time, with the coal thickness of 2.13m and 46 ° Inclination, working face 127m long “2603” north section, hit the ground