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作 者:霍栋浩 Huo Dong-hao(Yuxi Coal Mine Co.,Ltd.,Shanxi Lanhua Sci-Tech Venture,Shanxi Jincheng 048000)
机构地区:[1]山西兰花科创玉溪煤矿有限责任公司
出 处:《山东煤炭科技》2019年第11期70-72,共3页Shandong Coal Science and Technology
摘 要:本文将皇联煤矿15141工作面回采巷道出现的大变形、非对称破坏作为研究对象,对巷道出现的变形破坏特征进行了现场勘查,得到了巷道围岩变形破坏特点,使用理论分析和数值模拟方法对导致巷道不稳定的具体原因进行了研究,设计采用"高阻让压锚杆+锚索+注浆"复合支护返修方案,取得了较好的稳定性及控制效果。In this paper, the large deformation and unsymmetrical failure of the working face 15141 in Huanglian Coal Mine are taken as the research object, the deformation and failure characteristics of the roadway are investigated on the spot, and the deformation and failure characteristics of the surrounding rock of the roadway are obtained. The specific causes of the instability of the roadway are studied by theoretical analysis and numerical simulation. The "high resistance pressure bolt + anchor cable + grouting" composite support repair scheme is adopted in the design, and good stability and control effect are achieved.
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