公路工程

基于我国现行公路区划划分标准的不足之处,开展了我国南方地区高等级公路沥青路面极端低温气候分区研究。构建了沥青路面极端气候区划研究的体系框架,明确了极端气候分区的基本原则与方法,确定了南方地区沥青路面极端低温气候分区的总体目的和分区范围。结合南方地区极端低温气候的特点,以各地区极端低温T_extre、冬季降水量平均值W_win作为主导指标,多年平均最低气温T_mean、年平均降水量W_year作为辅助指标,制定了我国南方地区沥青路面极端低温气候分区方案,并采用地理位置+温度特征+水分特征的方法对划分区域命名。分区体现了南方地区冬季极端气候条件和气候过程的地域性差异。

Based on the deficiency of the current highway division standards,the study on extreme low temperature climatic zoning of high grade highway with asphalt pavement in South China was carried out. The system framework of the extreme climatic zoning of asphalt pavement was constructed,the basic principles and methods was defined and the general purpose and the range of climatic zoning was determined. Combining the characteristics of extreme low temperature climate in southern china,taking the extreme low temperature T_extre in each region and the average value of W_win as dominant indexes,multi-year mean minimum temperature T_mean and average annual rainfall W_year as auxiliary indexes,the extreme low temperature climatic zoning for asphalt pavement in southern China was established. Naming the partition areas by using the method of geographical position,temperature and water features. The regional differences of the extreme climatic conditions and climatic processes in the southern region are reflected by partition.