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为了评价气候对沥青混凝土路面的影响,开展了影响沥青混凝土路面的气候因素及评价指标研究,发现对沥青混凝土路面影响显著的气候过程和气候条件,主要有太阳辐射、高温过程、高低温循环变化过程、降水与高温组合过程、降水与冻融循环组合过程以及极端低温条件。通过分析这些气候过程和气候条件的特点,提出采用累年年平均太阳辐射日总量、累年年≥20℃积温、累年累计降水温度指数、累年降水冰冻组合指数、最大累年月平均气温日较差以及累年极端最低气温等指标作为影响沥青混凝土路面的相应气候过程和气候条件的评价指标,为了解和评价影响沥青混凝土路面的气候条件奠定了基础。
In order to evaluate the impact of climate on asphalt pavement, the paper studies the climatic factors and evaluation indexes that affect the asphalt pavement. The climatic and climatic conditions that have significant influence on the asphalt pavement are found, mainly including solar radiation, high temperature process, high and low temperature cycling Process, precipitation and high temperature combination process, precipitation and freeze-thaw cycle combination process and extreme low temperature conditions. By analyzing the characteristics of these climatic processes and climatic conditions, it is proposed to use the total annual solar radiation year-by-year, accumulated temperature ≥20 ℃, cumulative accumulated temperature index, accumulated precipitation freezing index, maximum cumulative annual average As the evaluation indexes of the corresponding climatic process and climatic conditions that affect the asphalt concrete pavement, the index of poor air temperature and the extreme minimum temperature in the years of year make the foundation for understanding and evaluating the climatic conditions affecting the asphalt pavement.