为了研究软弱顶板和坚硬顶板对沿空巷道围岩的影响作用,采用二维有限差分软件FLAC2D进行计算分析。分析结果表明,随着开采深度的增大,软弱顶板巷道围岩变形以顶底板和两帮为主。坚硬顶板巷道围岩变形是以底板和两帮变形为主。坚硬顶板沿空巷道的底臌变形比较大,在开采过程中需注意底臌变形。 In order to study the influence of weak roof and hard roof on the surrounding rock of gob-side entry, two-dimensional finite difference software FLAC2D is used to calculate and analyze. The analysis results show that with the increase of mining depth, the deformation of surrounding rock of soft roof is dominated by roof and floor and two gangs. Rock deformation of hard roof roadway is based on the bottom plate and two gang deformation. Hard roof along the roadway bottom 臌 deformation is relatively large, in the mining process should pay attention to the bottom 臌 deformation.