基于重载交通的沥青路面轴载换算方法研究  

Research on Axle Load Conversion Method for Asphalt Pavement Based on Heavy-duty Traffic

作　　者：廖艳鹤 LIAO Yanhe(Capital Engineering&Research Incorporation Ltd.,Beijing 100176,China)

机构地区：[1]中冶京诚工程技术有限公司,北京100176

出　　处：《工程技术研究》2023年第21期13-16,共4页Engineering and Technological Research

摘　　要：近年来,重载车辆类型和数量增多,对沥青路面的轴载换算提出了新要求。为了提高重载交通下轴载换算的准确性,文章基于现有规范的轴载换算方法,采用等效破坏原理,对重载交通下的轴载换算进行了研究。首先分析了重载车辆接地压力的接地面积,然后采用数值模拟的方式,修正了针对沥青层永久变形和路基顶面压应变的轴载换算系数。研究成果细化了不同轴载作用下的轴载换算系数,可为重载交通路面设计提供参考。In recent years,the type and number of heavyduty vehicles have increased,which puts forward new requirements for axle load conversion of asphalt pavement.In order to improve the accuracy of axle load conversion under heavy-duty traffic,this paper studies the axle load conversion under heavy-duty traffic by using equivalent breaking principle based on the existing standard axle load conversion methods.Firstly,the grounding area of heavyduty vehicle under grounding pressure is analyzed.Then,the axle load conversion coefficient for permanent deformation of asphalt layer and compressive strain of subgrade top surface is corrected by numerical simulation.The research results refine the axle load conversion coefficient under different axle loads,which can provide reference for the design of heavy-duty traffic pavement.

关 键 词：沥青路面 重载 数值模拟 轴载换算系数 

分 类 号：U412[交通运输工程—道路与铁道工程]