综采工作面过老空巷回采技术应用实践

Application of Old Mining Technology of Fully Mechanized Face Gob

塔山煤矿8301回采工作面在回采阶段遇老空巷,为有效防止工作面在回采过程中遇老空巷出现冒顶、片帮等事故的发生,通过技术研究判断老空巷所在位置、断面、穿插回采面深度以及分析老空巷对回采面的影响,决定对综采面过老空巷期间采取人工做假顶、调整回采面、降低回采高度等应对措施,实践证明采取措施后确保了工作面安全顺利通过老空巷。

The 8301 actual mining face of Tashan Colliery runs into crossing old roadway.In order to prohibit the accident of roof talhng,nb spalling,etc.,when runs into crossing old roadway during the stopping process,the Production Technology Dept.of Tashan Colliery used technology to judge the position of the crossing old roadway,the cross section,and the penetration depth of the stopping face,and analyzed the effect of the crossing old roadway to the stopping face,then decided to take the measures of using man-made false roof,adjusting stopping face,lower the stopping altitude.The practice shows that the measures they took ensured the working face pass the crossing old roadway safely.