西铭矿49709工作面两巷支护技术研究

Study on the Support Technology of Two-lane in 49709 Working Face of Ximing Mine

针对西铭矿49709工作面两巷支护等问题,通过理论计算和工程经验得到了巷道具体支护方式,结合巷道功能及回采经验,决定采用如下支护技术:选用正梯形断面;对于轨道巷、皮带巷常规段采用架棚支护;对于皮带巷外返段采用锚杆支护。最终对该技术方案进行了工业试验,通过分析巷道变形量显示,取得了良好的应用效果。

Through theoretical calculation and engineering experience, the concrete supporting mode of roadway is obtained, combined with the function of roadway and mining experience, the normal section of track roadway and belt roadway is supported by frame shed, and the back section of belt roadway is supported by bolt. Finally, industrial test is carried out, and good application effect is obtained by analyzing the deformation of roadway.