通过建立道面结构的有限元模型,仿真模拟土基存在软弱层的各类工况,并得出地震作用下软弱层宽度、厚度、所处深度及弹性模量对刚性道面基频的影响规律,结果表明:基频随软弱层宽度、厚度及所处深度的增大呈减小趋势,随弹性模量的降低逐渐减小,为场道的抗震设计以及土基中软弱层的评价提供了参考依据,具有重要的意义。 Through the establishment of the finite element model of pavement structure, simulate the various conditions of the weak layer in the soil foundation, and get the influence of the width, thickness, depth and elastic modulus of the weak layer on the fundamental frequency of the rigid pavement under earthquake action The results show that the fundamental frequency decreases with the increase of the width, thickness and depth of the weak layer, decreases with the decrease of the elastic modulus, and provides the seismic design of the ground and the evaluation of the weak layer in the soil foundation The reference, has important significance.