目前对层状路面结构动载响应的研究工作存在着不足，课题以此作为研究的一个方面。
We do much work to make up the lack of study on response of the Multi-layered Pavement System under the dynamic load.
就沥青路面结构层状结构的特点，提出沥青路面结构界面(层)研究的思路。
According to the characteristics of layers in asphalt pavement structure, we put forward the research idea of inter-layers in asphalt pavement structure.
基于层状弹性理论，利用BP神经网络预测沥青路面结构层弹性模量。
Based on layered elastic theory, the layered elastic moduli of asphalt pavement were predicted using BP neural network.
基于层状弹性理论，利用BP神经网络预测沥青路面结构层弹性模量。
Based on layered elastic theory, the layered elastic moduli of asphalt pavement were predicted using BP neural network.
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