动压巷道围岩变形特征及控制技术研究

Dynamic Pressure Affects the Surrounding Rock Deformation Law and Control Technology

煤炭回采带来的动压会给巷道围岩稳定性带来不利影响。以62105采面进风巷为研究对象,采用现场实测方法对动压影响下的巷道围岩变形规律进行分析,并根据围岩变形监测结果提出采用锚网索+注浆方式对动压巷道围岩进行控制。现场应用表明,巷道围岩最大变形量为95 mm,有效降低了动压对巷道围岩变形的影响,取得了显著的围岩控制效果。

The dynamic pressure brought by coal mining will adversely affect the stability of roadway surrounding rock.Taking 62105 mining face inlet airway as the research object,the field measurement method was used to analyze the deformation law of roadway surrounding rock under the influence of dynamic pressure.According to the monitoring results of surrounding rock deformation,it was proposed to use anchor net and grouting to control the surrounding rock of dynamic pressure roadway.Field application shows that the maximum deformation of the surrounding rock of the roadway is 95 mm,which effectively reduces the influence of dynamic pressure on the deformation of the surrounding rock of the roadway and achieves a significant effect of controlling the surrounding rock.