厚煤层顶板巷道围岩应力特征及围岩控制技术

hick Coal Seam Roof of Roadway Surrounding Rock Stress and Surrounding Rock Control Technology

以火石咀煤矿8711工作面为工程依托,采用UDEC数值模拟的研究方法,对典型的厚煤层顶板巷道的围岩应力及巷道破坏、变形特征进行了研究。在此基础上,提出了以锚杆钢带、锚索配大托盘为主的巷道支护设计方案,并根据巷道表面收敛监测结果,总结此种典型巷道的变形规律,矿压监测表明了研究及设计的可靠性。

Based on the engineering support of coal mine 8711 working face of the state of numerical simulation methods,the research of typical thick coal seam roadway surrounding rock stress and roadway destruction and deformation characteristics were conducted.According to the research,which put forward anchor steel band,anchor cable with large tray for roadway supporting design scheme and based on the roadway surface convergence monitoring results,summarizing the typical roadway deformation law of mine pressure monitoring showed that the reliability of the research and design.