综采工作面过陷落柱安全回采方法研究

Study on Safe Mining Method for Passing Through Subsided Columns in Fully Mechanized Mining Face

为了加快综采工作面过陷落柱期间回采速度,保证回采安全,潞安集团司马煤业公司在1213工作面过X5陷落柱期间采用松动爆破法回采工艺,并对陷落柱交界煤体采用注浆法进行加固,对顶板采用撞楔超前支护以及密集锚索棚进行联合维护,实际应用效果表明,取得了显著成效。

In order to speed up the mining speed and ensure the safety of fully mechanized mining face during passing the subsidence pillar, Sima Coal Industry Company of Lu'an Group adopted the loosening blasting mining technology during passing the X5 subsidence pillar in 1213 working face, used grouting method to reinforce the coal body at the intersection of the subsidence pillar, and used the pre-support of the impact wedge and the combined maintenance of the dense anchor cable roof. The practical application results show that remarkable results have been achieved.