摘要
通过对Q2和Q3黄土的单轴压缩和常规三轴试验研究,对两种黄土单轴压缩曲线和CU剪切的应力应变曲线特征进行分析比较,探讨了两种黄土应力应变本构模型。研究表明:强软化型Q2黄土应力应变关系,可采用强软化型模型进行描述,并对其模型参数进行了分析;弱软化-硬化型Q3黄土应力应变关系可用两参数的指数模型描述,也可用强软化性模型描述。
On the basis of the uniaxial compressive test and routine triaxial test results of Q2 and Q3 loess, the features of strain - stress curves of Q2 and Q3 loess are compared. The stress-strain constitutive models of two types of loess are discussed, the results show that the strong softening strain-stress constitutive relationship of Q2 loess can be described by strong softening model, and the model parameters are analysed, strain - stress constitutive relationship Q3 loess with weak softening - harden can be described both by strong softening model and exponential model with two parameters.
出处
《西安科技大学学报》
CAS
北大核心
2006年第4期451-455,468,共6页
Journal of Xi’an University of Science and Technology
基金
科技部项目(2002CCC00200)
