煤峪口矿5711巷掘进支护方案应用研究

Study on Application of Driving Support Scheme of the 5711 Roadway in Meiyukou Coal Mine

鉴于煤峪口矿8711工作面通风、运输需要,对5711巷道支护技术开展研究。针对现场围岩松动范围及变形特点,提出使用“锚杆-锚索-金属网”支护方案,根据巷道实际需求进行了支护参数的计算。现场试验效果表明,监测期间顶底板变形量控制在63 mm左右,两帮移近量控制在52.5 mm左右。

Based on the ventilation and transportation needs of the 8711 working face in Meiyukou Coal Mine,the support technology of the 5711 roadway is studied.According to the loose range and deformation characteristics of surrounding rock in the field,the support scheme of"bolt-anchor cable-metal mesh"is put forward,and the support parameters are calculated according to the actual needs of the roadway.The field test results show that during the monitoring period,the deformation of the roof and the floor is controlled at about 63 mm,and the displacement between the two sides is controlled at about 52.5 mm.