留窄煤柱沿空掘巷是提高煤炭采出率十分有效的一种方法。通过FLAC3D有限元软件对李村煤矿6303工作面轨道巷不同宽度窄煤柱垂直方向应力、水平位移场以及巷道变形情况进行数值模拟,得出了该矿沿空掘巷煤柱的合理宽度留设标准,确定留设5m左右窄煤柱护巷时稳定性较好。将理论分析结果应用于实践中,现场支护效果十分理想。 Maintaining a narrow coal pillar along the goaf is a very effective way to increase the coal recovery rate. The FLAC3D finite element software was used to simulate the vertical stress, horizontal displacement field and roadway deformation of narrow width coal pillars in 6303 face of Li Cun coal mine. The reasonable width of coal pillar in Gob - Standard, to determine the stability of the narrow coal pillar lanes when leaving about 5m better. The theoretical analysis results are applied in practice, the effect of on-site support is very satisfactory.