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.
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