回风巷道锚杆与粉煤灰浆体联合支护技术研究与应用  

Research and Application of Combined Support Technology of Bolt and Fly Ash Slurry in Return Air Roadway

作　　者：陈德勇[1] CHEN Deyong(Shaanxi Energy Vocational and Technical College,Xianyang 712000,China)

机构地区：[1]陕西能源职业技术学院,陕西咸阳712000

出　　处：《粉煤灰综合利用》2022年第3期43-48,共6页Fly Ash Comprehensive Utilization

摘　　要：以金达矿二采区10号煤层回风巷道为研究背景,根据其实际地质条件,对巷道的支护方案进行了研究。通过理论计算初步确定了巷道锚杆及锚索主要支护参数;在此基础上通过数值模拟分析了采空区对巷道的影响,锚索布置方案及巷道围岩的稳定性。根据理论分析和数值模拟结果,结合以往的实践经验,确定了巷道联合支护方案。实践表明:巷道支护方案合理,巷道变形量较小,可以保持整体稳定,满足工作面安全开采要求。Taking the return air roadway of No.10 Coal Seam in JINDA coal mine as the research background,according to its actual geological conditions,the support scheme of roadway was studied.Through theoretical calculation,the main supporting parameters of bolt and cable are preliminarily determined;on this basis,the influence of goaf on roadway,cable layout scheme and stability of surrounding rock were analyzed through numerical simulation.According to the results of theoretical analysis and numerical simulation,combined with the previous practical experience,the combined support scheme of roadway was determined.Practice shows that the support scheme of roadway is reasonable,the deformation of roadway is small,which can maintain the overall stability and meet the requirements of safe mining of working face.

关 键 词：回风巷道 联合支护 理论分析 数值模拟 

分 类 号：TD35[矿业工程—矿井建设]