关键词: 煤层巷道, 锚-喷-注, COMSOL模拟, 浆液性能, 矿压观测

Abstract: Based on working surface stoping disturbance phenomenon of serious damage of Wangcun mine east wing seam mining area roadway group, the anchor - Spray - note integration strengthening surrounding rock structure, control of roadway surrounding rock stability control thinking, Anchor Jet Grouting in the surrounding rock of the tunnel formed the strength of structure mechanism based on and using COMSOL simulation study obtained with water to cement ratio is 1.5:1 superfine cement grout of roadway surrounding rock points level coupling grouting reinforcement. Field drilling peep and mine pressure observation results show that: the grouting effect is good, the tunnel stability after the two sides moving close to the amount of control over the 120mm, roof and floor shift in control in 90mm, the largest section convergence rate control in less than 5%. The research results provide a theoretical and guiding significance for the stability control of surrounding rock of coal roadway under severe mining disturbance.