摘要
盛泰煤矿15201运输顺槽掘进过F_(3)断层期间,受断层构造应力影响,巷道掘进效率低、顶板维护困难、支护效果差,针对此问题,在过断层期间采取了分层爆破施工工艺,并对巷道围岩采用“注浆锚杆+桁架锚索+钢棚”联合支护措施,通过实际应用有效控制了断层破碎区围岩变形量,提高了巷道围岩稳定性,取得了显著应用成效。
Aiming at the problems of low roadway excavation efficiency,difficulty maintenance of roof,and poor support effect during 15201 transportation entry in Shengtai Colliery crossing F_(3) fault,the layered blasting construction technology was adopted during the fault period,and combined support measures of“grouting bolt-truss anchor cable--steel shed”was adopted for roadway surrounding rock,which have effectively controlled the deformation of the surrounding rock in the fault fracture zone,improved the stability of the roadway surrounding rock,and achieved significant application results.
作者
郭鑫煜
Guo Xinyu(Luning Coal Industry Co.,Ltd.,Lu'an Group,Ningwu,Shanxi 036700)
出处
《江西煤炭科技》
2021年第2期94-95,98,共3页
Jiangxi Coal Science & Technology
关键词
掘进巷道
过断层
施工工艺
支护措施
excavation roadway
cross fault
construction technology
support measures
