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介绍了小应变硬化土模型(hardening soil model with small strain stiffness,简称HSS)的理论基础及其参数确定的方法。同时,文中给出了上海地区软土HSS模型的经验参数。通过上海地区两个深基坑工程实例的流固耦合有限元分析,并将分析结果与实测结果对比,验证了HSS模型用于深基坑工程数值分析的可行性以及文中所建议的上海地区HSS模型参数的准确性。
The theoretical basis and the method of determining the parameters of the hardening soil model with small strain stiffness (HSS) are introduced. Meanwhile, the empirical parameters of soft soil HSS model in Shanghai area are given. Through the fluid-structure coupling finite element analysis of two deep foundation pit engineering projects in Shanghai area, the analysis results are compared with the measured results to verify the feasibility of HSS model for numerical analysis of deep foundation pit engineering and the proposed HSS Accuracy of model parameters.