摘要
针对余吾煤业松软破碎煤层支护困难的问题,以N3102工作面回风巷道为工程背景,对其破坏特征及维护特点进行分析,提出了对巷道进行临时支护及锚网索联合支护相结合的支护方案并进行了现场实践。实践表明:支护效果良好,有效控制了巷道围岩变形,保障了工作面的安全生产,为该矿其他煤层巷道围岩稳定性研究提供了参考。
In view of the difficulty in supporting soft and broken coal seams in Yuwu Coal Industry Co.,Ltd.,taking the air return roadway of N3102 working face as the engineering background,the failure characteristics and maintenance characteristics were analyzed,a support scheme combining temporary support of roadway and combined support of anchor net and cable was put forward,and the field practice was carried out.The practice showed that the supporting effect was good,the deformation of roadway surrounding rock was effectively controlled,and the safe production of working face was guaranteed,which can provide reference for studying the stability of roadway surrounding rock of other coal seams in the mine.
作者
张兴润
ZHANG Xingrun(Yuwu Coal Industry Co.,Ltd.,Shanxi Lu'an Chemical Group,Changzhi 046000,Shanxi,China)
出处
《能源与节能》
2023年第12期150-152,156,共4页
Energy and Energy Conservation
关键词
松软煤层巷道
围岩稳定性
破坏特点
soft coal seam roadway
surrounding rock stability
failure characteristics
