大断面切巷锚杆支护参数的研究与应用  

Research and application of bolt support parametersin large section cutting roadway

作　　者：张腾宙 Zhang Tengzhou(Wajinwan Coal Industry Company of Jinneng Holding Coal Industry Group,Datong 037042,China)

机构地区：[1]晋能控股煤业集团挖金湾煤业公司,山西大同037042

出　　处：《煤炭与化工》2023年第2期30-32,94,共4页Coal and Chemical Industry

摘　　要：为研究挖金湾煤业公司8102切巷各个支护参数对巷道稳固性的影响,利用FLAC3D软件对该巷道的锚杆支护参数进行模拟分析。结果表明,最佳支护参数为锚杆预紧扭矩达到300~350 N·m、支护密度排距1.3~1.4 m、间距1.0 m左右。合理的锚杆预应力和支护密度是影响锚杆支护整体性效果的关键,能够实现巷道主动支护及锚杆支护应力区的叠加效应,使巷道支护区域形成有效的支护整体。In order to study the influence of various support parameters on the stability of 8102 cutting roadway in Wajinwan Coal Industry Company,FLAC 3D software was used to simulate and analyze the bolt support parameters of the roadway.The results showed that the optimal support parameters were bolt preload torque of 300~350 N·m,support density row spacing of 1.3~1.4 m and spacing of about 1.0 m.Reasonable bolt prestress and support density were the key to the overall effect of bolt support,which realized the superposition effect of roadway active support and bolt support stress area,so that the roadway support area could form an effective support whole.

关 键 词：大断面 切巷 支护 数值模拟 预紧力 锚杆密度 

分 类 号：TD353.6[矿业工程—矿井建设]