高速公路是全天候的室外结构设施,它除了承受正常的车辆荷载之外,还受到雨、雪、冰、高温等不利气候的影响。在雨季、高温、冰雪等不利季节中,各类不利气候、环境因素会诱发高速公路某类病害大面积爆发,同时导致道路病害程度的加剧,造成高速公路道路品质急剧下降,因此,必须建立 The highway is an all-weather outdoor structural facility which, apart from its normal vehicle load, is also affected by unfavorable weather such as rain, snow, ice and heat. In unfavorable seasons such as rainy season, high temperature, snow and ice, various unfavorable climatic and environmental factors will induce large-scale outbreak of certain diseases on expressways and lead to aggravating of road diseases, resulting in the sharp decline of expressway road quality. Therefore, it is necessary to establish