【摘要】 为降低沥青路面温度，缓解路面车辙问题，将相变储热与热诱导相结合设计了双向热诱导相变结构(Bidirectional heat-induced phase change structure, BHI-PCS),同时设置对照组空白结构(Blank structure, BS)、只添加相变材料的相变结构(Phase change structure, PCS)和只添加导热材料的双向热诱导结构(Bidirectional heat-induced structure, BHIS)。基于ABAQUS有限元分析对不同结构内部的热量变化情况及抗车辙能力进行了模拟，并设计室内测温系统对降温效果进行了验证。研究表明：与对照组相比，BHI-PCS降低路面温度效果更为显著，最大模拟温度降低4.1℃,室内测温试验结果与模拟计算结果吻合较好；同时BHI-PCS抵抗车辙的能力较强，最大车辙深度降低46.5%,所提出的结构能够为高温地区降低沥青路面温度，缓解路面车辙问题提供参考。更多还原

【Abstract】 To reduce the temperature and rutting of asphalt pavement, a bidirectional heat-induced phase change structure(BHI-PCS) was designed through the combination of phase transition heat storage and heat induction. And a blank structure(BS), phase change structure(PCS) with only phase change added, and bidirectional heat-induced structure(BHIS) with only thermal conductive material added were set as the control group. Based on the ABAQUS finite element analysis, the internal heat change and rutting resistance of different structures were simulated, and the cooling effect was verified by the laboratory temperature test. The results show that compared with the control group, BHI-PCS has a more significant effect on reducing road temperature, with the maximum simulated temperature reduced by 4.1 ℃. The laboratory temperature test results are in good agreement with the simulation calculation results. At the same time, BHI-PCS has a strong ability to resist rutting, and the maximum rutting depth can be reduced by 46.5%. The proposed structure can provide reference for reducing the temperature of asphalt pavement in high-temperature areas and alleviating the rutting problem of pavement.更多还原