Influenced by collapsed coal column, fold, the recovery mining in No. 2 coal seam of Guandi Mine caused large broken surrounding rock, intense roadway section, anchor bolt and rope support failure. Bolt, cable, shotcrete joint support scheme was put forward, the technology was feasible by theoretical research, field engineering practice, late stage pressure monitoring. The study showed that the parameters were reasonable, roof separation less than 52 mm, mining roadway surrounding rock load less than 75.5 kN, the recovery mining roadway was stable, providing reference for similar roadway mining.
范雨涛. 赋存陷落柱、褶曲的煤矿回采巷道围岩支护方法及应用[J]. 煤炭与化工, 2018, 41(11): 13-15,18.
Fan Yutao. Recovery roadway surrounding rock support technology and application of occurrence collapsed columns and fold. CCI, 2018, 41(11): 13-15,18.
