米山煤业巷道矿压观测分析及围岩控制

Mineral Pressure Observation Analysis and Sur Rock Control in Mishan Coal Industry

矿压观测是遏制煤矿顶底板事故的有效方法,米山煤业选择以15103运输顺槽为研究对象,对巷道顶底板、两帮的位移量和锚杆(索)受力情况进行分析。根据观测结果发现巷道局部顶板破碎,存在下沉量较大、两帮围岩变形较严重的现象。针对这一情况制定了巷道在施工过程中的一系列管控措施,对围岩起到了良好的控制效果。

Mine pressure observation is an effective method to curb the roof and floor accidents in coal mine.Mishan Coal Mine chooses 15103 transportation gateway as the research object to analyze the displacement of roof and floor,two sides and the stress of bolt(cable).According to the observation results,it is found that the local roof of the roadway is broken,and there are large subsidence and serious deformation of the surrounding rock of the two sides.In view of this situation,a series of control measures in the construction process of the roadway are formulated,which has a good control effect on the surrounding rock.