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裴沟煤矿42采区泵房围岩岩性差,服务年限长,埋藏深应力大且受断层影响,残余构造应力也大。通过分析原U型钢棚支护,巷道掘出后不久即严重变形的原因,提出了通过围岩注浆,顶帮部棚索协同支护增加结构稳定性,提高其承载能力,底板锚网索支护控制底鼓。通过方案实施后的现场实测,该方案有效控制了围岩变形。
Peiou coal mine 42 mining area surrounding rock poor rock properties, long service life, burial deep stress and affected by the fault, the residual tectonic stress is also large. By analyzing the reason of the original U-shaped steel shed support and the severe deformation of the roadway shortly after excavated, it is proposed to increase the structural stability and improve the bearing capacity through the grouting of the surrounding rock, Support control bottom drum. After the implementation of the program after the scene measured, the program effectively control the deformation of the surrounding rock.