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本文采用简单方法推估计算邓肯一张双曲线模型的8个参数．使路堤沉降计算考虑土体非线性应力应变分析成为可能。同时采用超单元交换法自动创分路堤与路基的有限元网格，使高级公路的路堤沉降计算实用化。
In this paper, we use a simple method to estimate 8 parameters of a hyperbolic model of Duncan. It is possible to calculate embankment settlement considering soil nonlinear stress and strain. At the same time, the finite element mesh of embankment and embankment is automatically created by using the super-unit exchange method, so that the embankment settlement calculation of high-grade highway is put into practical use.