摘要
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 foundation of the hardening soil model(HSS model) with small strain stiffness is introduced.The method to determine the parameters of the HSS model is proposed.The experimental parameters of the HSS model of Shanghai soft clay are given.Two projects of deep foundation excavation in Shanghai are analyzed by use of the fluid-solid FEM.The results of numerical analysis agree with the measured data.The feasibility of the HSS model and the accuracy of the recommended parameters are validated.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2010年第S1期166-172,共7页
Chinese Journal of Geotechnical Engineering
关键词
小应变
HSS模型
深基坑
卸载
流固耦合分析
有限元
small strain
HSS model
deep foundation pit
unloading
fluid-solid coupling analysis
finite element method
