路面基层材料的分类及其服役状况综述

Review on Classification and Service Status of Road Base Course

道路基层作为间接承受和分散路面载荷并传递应力的主要承重层和功能层,对道路的服役性能和寿命起着重要作用。综述了道路基层的类型和各自的特点、发展历程以及国内外应用现状。重点论述了半刚性路面基层在我国广泛应用的理论基础及其存在的固有缺陷,以及我国近年来在柔性与半柔性基层的应用及其现状。通过对各类型道路基层的对比分析,可为基层类型选择和结构设计提供指导。

As the main load-bearing layer and functional layer that indirectly bear and disperse the road load and transfer stress,the road base plays an important role in the service performance and life of the road.This paper summarizes the types and respective characteristics,development history and application status of the road at home and abroad.It focuses on the theoretical basis of semi-rigid road bases widely used in our country and their inherent defects,as well as the application and status of flexible and semi-flexible bases in our country in recent years.Through the comparative analysis of various types of road bases,it can provide guidance for the selection of base types and structural design.