具有柔性过渡层的沥青混凝土路面半刚性基层顶部温度状况的理论模拟

半刚性基层沥青混凝土路面反射裂缝产生的原因之一是半刚性基层温度变化引起的，半刚性基层和沥青混凝土面层之间加入柔性过渡层可有效地防止沥青混凝土路面出现反射裂缝。根据传热学原理，采用有限单元法对吉林省通化试验路3种路面结构半刚性基层顶部温度状况进行了对比分析，结果表明无论夏季或冬季，柔性过渡层都能有效地改善沥青混凝土路面半刚性基层的温度状况，从而减少或消除沥青混凝土路面出现反射裂缝。

Theoretical Simulation of Semi-Rigid Base Top Temperature on Asphalt Concrete Pavement with Flexible Transition Base

One reason of semi-rigid asphalt concrete pavement reflecting cracks is caused by semi-rigid base temperature change. Flexible transition base between semi-rigid base and asphalt concrete surface could efficiently avoid or reduce reflecting cracks of asphalt concrete pavement. According to heat exchange theory, temperature status of semi-rigid base top in Tonghua test road of Jilin Province three kinds of pavements are contrasted by finite element method. The results indicate that flexible transition base could efficiently ameliorate temperature status of asphalt concrete pavement semi-rigid base, therefore it could reduce or avoid reflecting cracks of asphalt concrete pavement.