关键词: 近距离开采, 应力集中, 巷道支护, 分时散压

Abstract: In order to solve the problem of the difficulty of the support of the coal seam roadway at a mine of Fengfeng Group when the coal seam is mined at close range, the stress peak and its influence range below the upper coal seam after mining are analyzed, and the "anchor bar (rope) preload load is designed for the most difficult position of the lower coal seam roadway support." The support scheme of the time-between scattered pressure of the pressurer, and the change of the top plate off-level number and the range of the pull zone by numerical simulation calculation and continuous monitoring of the manual measuring station, as well as the deformation of the surrounding rock and the force size of the anchor bar (rope) are observed and analyzed, the results show that the use of After the anchorbar (rope) preload load and pressure press split pressure"support scheme, the roadway support effect can meet the needs of safe production and can provide reference for similar lane support.