干旱荒漠区路面覆盖效应评价指标与评价模型研究

为解决路面覆盖效应引起的气态水汇聚而导致的沥青路面翻浆病害,文中利用新疆公路沿线103个气象站点近50年的自动气象站资料和四要素5层梯度风监测站资料,分别建立了10m与2m高度平均风速换算模型:U1天山以北公路沿线=0.79u10+0.32与U2天山以南公路沿线=0.77u10+0.25。结合信息论中离散变量熵理论,把新疆公路划分了五个等概分布区,研究确定了地下水位、土质参数为路面覆盖效应评价指标,并绘制了基于地下水与土质参数的公路覆盖性分区表。

The evaluation index and evaluation model of pavement coverage for arid desert area

To resolve the asphalt pavement frothing disease caused by gaseous water aggregation because of pavement coverage,this research used the automatic weather station data and the four elements of the 5-layer gradient wind monitoring station data from the 103 meteorological stations along the highway in Xinjiang nearly 50 years to establish the average wind speed of 10m and 2m high degree of conversion model: U1=0.79u10+0.32 and U2=0.77u10+0.25.Combinating the theory of discrete variables in the information theory,Xinjiang highway was divided into five distributions.The study identified the groundwater level,soil parameters for the evaluation model of pavement coverage,and drew the partition table of the pavement coverage based on the groundwater and soil parameters.