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本文通过对比分析层状地基承载力计算方法，结合上海地区天然地基土层分布的实际情况，采用地基土性质指标按地基破坏剪切线（面）长度加权平均的方法，建立了双层地基承载力计算模式，对特定条件下的地基评价具有理论和现实意义。
In this paper, by comparing and analyzing the calculation method of bearing capacity of layered foundation and combining with the actual situation of distribution of natural soil in Shanghai, the method of using foundation soil property index to weight-average the length of the ground breaking shear line (face) is adopted to establish the double-layer foundation bearing. The force calculation model has theoretical and practical significance for ground-based evaluation under specific conditions.