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沥青路面铺筑温度场数值仿真模型

Keywords: 道路工程,数值仿真模型,铺筑温度场,沥青路面

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Abstract:

为确定一定环境下沥青混合料铺筑过程温度衰减规律,对铺筑过程路面温度场的仿真模型进行了研究.采用非连续的随碾压次数而变的层厚、材料热物性和洒水散热条件,连续的随温度而变的对流换热、辐射换热条件,以及非均匀的底层初始温度场,建立了一维仿真模型.通过变换几何模型及循环调用初始温度场的方法,实现了非连续条件在连续场分析中的应用.由仿真模型验证,本文模型可以在不同环境条件下实现铺筑过程温度场仿真.

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