In the case of 5113 roadway, which is located in the fracture area and affected by the pressure of the recovery of 8111 working face, the roadway appears large deformation, which seriously affects the normal use of roadway. This paper, based on the geological conditions of roadway in field condition, uses three-dimensional numerical simulation software FLAC3D to simulate, and respectively, uses the original support scheme, strengthened bolting scheme and cement mixture filling method for supporting case simulation. It is concluded that the first two scheme can meet the requirements of roadway support during excavation. However, the dynamic pressure can be greatly deformed, and the cement slurry filling method can satisfy the roadway safety under the influence of dynamic pressure. Therefore, cement mixing filling method can guarantee the normal use of roadway under the geological conditions, which is suitable for promotion in similar geological conditions.%针对5113 巷处于断层处且受到8111 工作面回采动压的影响,巷道出现较大变形,严重影响巷道的正常使用.本文根据巷道所处的地质条件采用三维数值模拟软件FLAC3D 对现场情况进行模拟,采用加强锚杆支护方案以及水泥混合浆充填法进行模拟,得出前两种方案在掘进期间能够满足巷道支护要求.但是,动压来临时发生较大的变形,而水泥混合浆充填法能够很好地满足动压影响下的巷道安全.所以,水泥混合浆充填法能够保证该地质条件下巷道的正常使用,该技术适合在相似地质条件下进行推广.
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