Abstract Developing an accurate and efficient forward model of the dynamic response of pavement structure is of great significance for obtaining the design parameters of the layered pavement structure through inverse calculation based on the measured pavement data. Based on the spectral element method, this study proposes an accurate and efficient numerical dynamic model of falling weight deflectometer tests for the transversely isotropic layered pavement structure. The developed algorithm considerably enhances the efficiency of the model in solving the dynamic response of transversely isotropic layered media by avoiding the infinite integration in integral transformation. Moreover, numerical examples verify the accuracy and efficiency of the algorithm developed in this study. At the same time, an extensive parametric studies have been carried out to clarify the effects of the Young's modulus in the vertical direction and thickness of the layered pavement structure as well as the elastic modulus of the thin interlayer on the dynamic response of the pavement, which provides a reliable, numerical, theoretical basis for the design of pavement structure.

中文翻译：

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柔性横向各向同性分层路面落锤挠度计试验动态模拟

摘要 建立准确、高效的路面结构动力响应正演模型，对于基于实测路面数据反演获得分层路面结构设计参数具有重要意义。本研究基于谱元法，提出了一种准确高效的横向各向同性层状路面结构落锤挠度试验数值动力学模型。所开发的算法通过避免积分变换中的无限积分，大大提高了模型求解横向各向同性层状介质动态响应的效率。此外，数值例子验证了本研究中开发的算法的准确性和效率。同时，