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长寿命路面是一种新的路面设计理念。该文使用具有不同层厚和模量组合的有限元程序,建立了一个包含结构、材料信息、表面弯沉以及路面临界响应等信息的综合数据库;根据极限应变水平概念和建立的综合数据库,研究了长寿命路面的典型层厚度和模量变化对临界路面响应的影响;最后,建立了确定满足长寿命路面要求的层厚和模量的简化设计方法。
Long-life pavement is a new concept of pavement design. In this paper, a finite element program with different layer thicknesses and moduli is used to establish a comprehensive database containing structural, material information, surface deflection and critical response of pavement. According to the concept of ultimate strain level and the comprehensive database established, Finally, the simplified design method to determine the layer thickness and modulus to meet the long-life pavement requirements was established.