环境因素对路面使用性能的影响

路面在使用过程中，承受着行车荷载和环境因素的双重作用，即使是相同的路面结构，其损坏速度也会因所处的环境不同而不同．而环境因素对路面性能影响的隐蔽性，加上与荷载因素交织在一起，为研究环境因素的影响造成了很大的困难．文中以已提出的路面使用性能标准衰变方程为基础，通过不同地区路面使用性能方程的对比，定量分析了环境因素的作用，建立了温度、温度与路面性能的关系式．就分析的５个省市而言，因环境因素的不同而造成的路面寿命差异达２５％，路面的早期损坏现象也相差很多。

Effects of Environmental Factors on Pavement Performance in Distress

Pavements in service are comprehensively affected by vehicle loads and environmental factors and the deterioration rates of pavements in different regions are different although their pavement structural combination and traffic are the same. So far, the studies on environmental effects on pavement performance have made less progress because of the complexities of environmental effects. On the basis of previously developed pavement performance equations, this paper quatitatively analyses the effects of environmental factors, and develops the relationships among temperature, moisture and pavement performance in distress by comparing the pavement performance equations of different regions. In the case of 5 provinces / cities noted in this paper, the pavement life differences caused by environmental factors reaches 25% and the phenomena of early pavement distress are more significant in wet regions.