辛置煤矿2-216运输顺槽支护参数优化及应用研究

Study on optimization and application of supporting parameters for 2-216 transportationalong Xinzhi Mine

为解决辛置煤矿2-216运输顺槽在断层影响下变形量过大的问题,通过矿压观测、窥视仪窥视及理论分析计算等方法进行研究。原有支护方案下,巷道围岩的临界破坏深度为2.32 m,据此对2-216运输顺槽的支护参数进行优化,现场应用及围岩位移监测结果表明,监测的15 d期间,顶底板相对移近量最大约191 mm,两帮移近量最大约162 mm,位移量较小,将巷道围岩的变形控制在合理的范围内,为工作面的安全高效生产提供了保障。

In order to solve the problem of excessive deformation of the 2-216 transportation roadway in Xinzhi Mine under the influence of faults,research was carried out by methods such as underground pressure observation,peeping and theoretical analysis.Under the original support scheme,the critical failure depth of the surrounding rock of the roadway was 2.32 m.Based on this,the support parameters of the 2-216 transportation were optimized.The field application and monitoring results of the surrounding rock displacement showed that during the 15 d monitoring period,the relative approach of the top and bottom plates was approximately 191 mm,and the approach of the two sides was approximately 162 mm.The displacement was small.The deformation of the surrounding rock of the roadway was controlled within a reasonable range,which guaranteed the safe and efficient production of the working face.