东峰煤矿大断面全煤巷道围岩控制研究

Study on surrounding rock control of large section coal roadway in Dongfeng Coal Mine

依托东峰矿大断面全煤巷道的支护实际,利用理论分析的方法,对巷道跨度对巷道失稳高度以及巷道围岩强度对巷道围岩稳定性的影响进行了详细分析;采用工程类比的方法,设计了该矿大断面全煤巷道的支护参数,并进行了现场应用,通过钻孔窥视与巷道位移监测验证了其合理性。

Depending on the support practice of large cross-section Full-coal roadway in Dongfeng Coal Mine, the influence of roadway span on roadway instability height and roadway surrounding rock strength on roadway surrounding rock stability is analyzed in detail by using theoretical analysis method. The supporting parameters of large cross-section Full-coal roadway in Dongfeng Coal Mine are designed by engineering analogy method and carried out. The rationality of the field application is verified through borehole peeping and roadway displacement monitoring.