本文中建议了一个包含塑性体应变和偏应变两个硬化参数的封闭屈服面模型，可以同时应用于正常固结土和超固结土。该模型沿用了剑桥模型的参数测定方法，而大大拓展其适用范围。通过正常固结试样、超固结试样和应力路线转折条件下计算与试验曲线的对比，说明该模型有较广泛的适应性。 In this paper, a closed yield surface model is proposed, which contains two hardening parameters of plastic strain and partial strain. It can be applied to both normal and overconsolidated soil. The model followed the Cambridge model parameters determination method, and greatly expand its scope of application. The comparison between the calculated and experimental curves of normal consolidated specimens, overconsolidated specimens and stress path transitions shows that the model has a wide range of adaptability.