Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an, Shaanxi 710064, China E-mail:
Central South Civil Aviation Airport Design and Research Institute, Guangzhou 510080, China.
Water Sci Technol. 2019 Nov;80(9):1740-1750. doi: 10.2166/wst.2019.426.
Permeable asphalt pavement should be selected according to the rainfall characteristics of the project site, so as to improve the permeable performance and ensure the bearing capacity of the pavement structure. Therefore, taking a city in the central plains urban agglomeration of China as an example, the characteristics of the rainstorm intensity distribution and cumulative rainfall are analyzed, and a combination scheme of drainage surface layer asphalt pavement suitable for rainfall characteristics in this area is proposed. Then, the pavement structure design is systematically carried out based on the permeable capacity and bearing capacity. The results show that under the rainfall conditions in this area, there is no surface runoff on the permeable asphalt pavement with 120 mm drainage surface layer, which is suitable for the medium traffic grade of urban roads with cumulative equivalent axle loads of 10 million to 12 million times.
应根据项目所在地的降雨特征选择透水沥青路面，以提高透水性能并确保路面结构的承载能力。因此，以中原城市群中的一个城市为例，分析了暴雨强度分布和累积降雨量的特征，并提出了适合该地区降雨特征的排水表层沥青路面组合方案。然后，根据透水能力和承载能力对路面结构进行了系统设计。结果表明，在该地区的降雨条件下，排水层厚度为 120mm 的透水沥青路面没有表面径流，适用于累计当量轴载为 1000 万至 1200 万次的城市道路中级交通等级。
