本文为适应我国目前以垂直位移(弯沉)为指标和探索以应力、应变为新指标设计柔性路面的需要,提出一个利用双层体系数值解图表计算多层体系垂直位移、垂直应力和剪应力的方法。此法使多层路面结构的复杂计算变得较简单容易。当有了材料的计算参数以及应力、位移的设计指标以后,可据此拟订一个不仅包括表面垂直位移计算,而且包括土基垂直应力和剪应力验算在内的新设计方法。 In order to meet the current need of vertical displacement (deflection) in our country and to explore the design of flexible pavement with new indexes of stress and strain, this paper presents a method to calculate the vertical displacement, vertical stress and shear stress Methods. This method makes the complex calculation of multi-layer pavement structure easier and easier. With the calculation of material parameters and design criteria for stress and displacement, a new design approach that includes not only surface vertical displacement calculations but also vertical and shear stress tests of the earth’s foundation can be developed.