国内外沥青路面设计方法研究

Review of Asphalt Pavement Design Methods

传统的单一经验法和力学法乃至简单组合的力学-经验法,已越来越不适应重载和特重交通沥青路面的发展。如何满足材料与结构设计的统一,建立结构、材料、环境、荷载和经济的统一体系,最大限度地增强特重交通下路面使用性能,是一大难题。对国内外沥青路面的一些经典设计方法进行论述评价,简单介绍基于性能的全寿命沥青路面设计法和永久性沥青路面设计法,并提出沥青路面设计的一些建议。

The conventional pavement design methods,such as,empirical,mechanical as well as mechanical-empirical methods,cannot meet the requirements of the development of heavily,extra heavily loaded asphalt pavements.It is both a research and apractical challenge for meeting the requirements of both the material and the structural design.It is also difficult to develop a design method that considering the aspects of pavement structure,material,environment;load and cost and maximize the performance of the pavement structure under the extra heavy loading conditions.The nationally and internationally existing typical pavement design methods are reviewed in this paper.The performance based full life cycle asphalt pavement and perpetual asphalt pavement design methods are introduced and suggestions for the design improvements are provided.