The stability of underground mine roadway under complex geological conditions is a difficult problem of sur-rounding rock controlling. According to the inclined mining roadway phosphate ore-body near fault of Tiaoshuihe Phosphorus Mine in Yichang,the numerical simulation method is used to set up 5 groups of different working conditions so conduct compar-ison and analysis of the mining roadway stability. The study results show that:when the mining roadway near the fault,due to the exposed are of the mined-out area is large,which will enlarge the influence of fault fracture zone to roadway stability,so the roadway should be avoided arranging along the tendency direction,if not,the safety distance of fault safety pillars should be in-creased,besides that,the the change characteristics of surrounding rock of the mined-out area near the faults of should be no-ticed;when the mining roadway is arranged along the heading direction,the safety pillars with the safety distance of 15 m can guarantee the stability of roadway under the conditions of single strip mining, the safety distance of safety pillar can be in-creased above 20 m at least to suit for the mining area that the multiple strips mining method is obtained.%复杂地质条件下地下矿山巷道的稳定性是矿山围岩控制的难点.针对宜昌挑水河缓倾斜磷矿体近断层回采巷道,采用数值模拟方法,设置5组不同的工况条件进行对比研究.研究结果表明:回采巷道靠近断层时,由于暴露的采空区面积较大,会加大断层破碎带对于巷道稳定性的影响,必须尽量避免沿倾向布置,如果一定需要采用倾向布置回采巷道,则应当加大断层保安矿柱的安全距离,并且注意靠近断层处采空区的围岩变化;回采巷道沿走向布置时,15 m的保安矿柱可使单条带回采时的巷道基本处于稳定之中,但对于需要多条带同时开采的采区,则需要至少20 m以上的断层保安矿柱.
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