三维有限元模型在柔性路面分析中的应用

根据当前经验——机械模型工具的发展,提出了一种不同于传统柔性路面分析的三维有限元新方法。另外,提出了将扩散角用于路面结构设计的建议。最后,根据现场实测数据,应用三维有限元模型对路面沥青层底部的最大拉伸应变和土基顶部的最大纵向压应力进行了预测。

On application of three-dimensional finite element model in analysis of flexible pavement

According to the development of the experience and the mechanical model tools,the paper points out the three-dimensional finite element new method which is different from the traditional flexible pavement,points out the suggestion for leading the diffusion angel to the pavement structure design,and forecasts the maximal tensile strain of the asphalt bottom of pavement and the maximal longitudinal compressive stress of the top part of the earth subgrade by applying the three-dimensional finite element model according to the field measurement data.