砂土不同粒径对邓肯—张双曲线模型参数的影响

Influence of paraments of Duncan-Chang model on sand different size

邓肯—张双曲线模型能较好地反映土体的非线性性态,概念清楚,易于理解,在岩土工程和地下工程的数值分析中得到广泛应用。在作具体数值计算时,要用到具体的参数值。一些文献、书籍和资料中,给出了一般性的砂土、粘土和黄土等的邓肯—张模型参数。通过常规三轴试验,得到了砂土的不同粒径对邓肯—张模型参数a,b值的影响。

Duncan-Chang model can better reflect the soil of the nonlinear behavior, the concept of dear, easy to understand, in geotechnical engineering and underground works in the numerical analysis is widely used. In a specific numerical calculation, to use the specific parameters. Some literature, books and general information is given in the sand, clay parameters of Duncan-Chang model. By conventional triaxial test, get the sand Duncan on a different size model parameters a, b value of the impact.