针对超高单台阶排土场存在明显的粒径分级这一特点,以弓长岭某排土场为实例,利用元胞自动机模型模拟现场粒径分布,并借助FLAC~(3D)软件,构建了考虑超高单台阶排土场边坡模型,对比分析了均质边坡和考虑粒径分级边坡的稳定性。结果表明:采用元胞自动机与FLAC~(3D)软件相结合的分析方法,能较好模拟排土场的粒径分级现状,得出粒径分级情况下,可能滑动面位置上移,安全系数增加,有利于排土场稳定性的结论。 Aiming at the obvious particle size classification of ultrahigh single-stage dump, taking the example of a dump in Gongchangling, the particle size distribution of the site was simulated by the cellular automaton model. With FLAC 3D software, The model of slope with ultra-high single-stage dump was constructed and the stability of homogeneous slope and slope considering granularity were compared. The results show that the method of combining Cellular Automata with FLAC 3D software can better simulate the particle size classification of the dump and make it possible to move the sliding surface upward with the classification of particle size. Coefficient increases, is conducive to the conclusions of the stability of the dump.