路面结构低温状况分析

Low Temperature Condition of Pavement Structures

从研究冬季气温与地温、地温与路表温度之间的关系着手，归纳了冬季路表温度日交变和降温过程的变化规律;;进而推导和给出了相应的路面结构温度场计算公式和实用图表．

By researching on the relationships among air temperature, ground temperature and Pavement surface tem- perature, the law of daily alternate changing and the process of dropping in pavement surface temperature in winterhave been summarized, and then, to obtain the temperature field in pavement structure, the corresponding formula andsome practical charts are given in this paper.