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为研究顶板瓦斯尾巷采动变形破坏规律,结合五阳煤矿7605高瓦斯综放面地质条件,采用物理模拟和FLAC3D数值计算方法,对顶板瓦斯尾巷和回采巷道围岩应力分布和塑性区发育特征进行了分析。结果表明:工作面充分采动后,在煤壁前方10～16 m范围内出现应力叠加集中区,最大竖向应力集中系数2.72。现场采用瓦斯尾巷围岩控制技术后取得了较好效果。
In order to study the law of mining deformation and failure of the roof gas tunnel, according to the geological conditions of 7605 high-gas caving face in Wuyang Coal Mine, physical simulation and FLAC3D numerical calculation method were used to analyze the stress distribution and plastic zone development of the roof gas tunnel and the mining roadway Features were analyzed. The results show that the stress superposition zone appears in the range of 10 ~ 16 m ahead of the coal wall after full mining face, and the maximum vertical stress concentration factor is 2.72. The use of gas tailings Surrounding Rock control technology has achieved good results.