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不恰当的设计方法是导致基坑破坏的主要原因之一.针对这种情况,提出了基坑工程模拟的方法论.基于这种方法论,比较了极限平衡与数值模拟两种方法在基坑稳定性分析时的优点及其局限性,最后通过一个实际的基坑工程,比较了两种方法模拟的结果.结果表明,数值模拟方法在一定程度上能够更好地揭示出基坑土体的应力与变形规律.“,”One of the main reasons leading to foundation pit failure is that the design method is not suitable. In order to solve the problem, a methodology for foundation-pit modeling is described. Based on the methodology, both limit equilibrium analysis and numerical modeling one are compared. Their advantages and limitation are proposed. Finally, an actual foundation - pit project is modeled. The simulating results of two kinds of methods are compared. The results show that numerical medelling method can better reveal the laws of stress and deformation for foundation - pit than limit equilibrium one.