邓肯—张模型研究现状和在工程中的应用讨论

The Research and Engineering Application of Duncan-Chang Model

目前描述土的应力-应变关系的数学模型有很多种,包括弹性和弹塑性两大类。非线性弹性模型中,邓肯—张(Duncan—Chang)模型因其具有多种优点而获得了最为广泛的应用,它包括初始模型和修正后的E-B模型。在某工程路基沉降计算过程中应用了E—μ模型,在计算塔克拉玛干沙漠粉沙变形用到了E—B模型。

Several methods to represent the stress-strain relationship of soil have been discovered, including elastic and elasticplastic models. In nonlinearity model, Duncan-Chang model have been used most widely with many kinds of advantages, embracing initial model and corrected E-B model. In a calculation of roadbed subsidence, it used E-μ model, in the calculation of the crush sand deformation of Taklamakan desert.