上海软土各向异性弹塑性模型的研究

Study on an Anisotropic Elasto plasticity Model of Shanghai Soft Soil

本文在上海软土各向同性破坏准则的基础上，引入各向异性参数，对上海软土各向异性弹塑性模型的建立进行研究和探讨，并对模型中的各项参数进行确定。计算结果表明，在确定土体应力—应变关系时，不仅应该考虑土的弹塑性，还应该考虑到土的各向异性，这样才能符合土的实际情况。

Based on the isotropic failure criterion and anisotropic parameters adopted,the establishment of an anisotropic elasto plasticity model for Shanghai soft soil is researched,and the methods for determining parameters in the model are presented in this paper.The calculated results show that the model considering both elasto plastic and anisotropic characteristics in determining soil stress strain relations agrees quite closely with the actual state.