天津建设科技2025，Vol.35Issue(6)：21-24,4.DOI:10.3969/j.issn.1008-3197.2025.06.005
动态重载对高速公路加宽工程路面结构受力的影响研究
Study on the Influence of Heavy Dynamic Loads on the Stress of Pavement Structures in Expressway Widening Projects
摘要
Abstract
In order to explore the effect of heavy dynamic load on the mechanical characteristics of the pavement of ex-pressway widening project,the finite element method was used to calculate and analyze the maximum tensile stress of pavement surface layer,base and subbase under different settlement and axle load conditions,and the effects of dynamic load and static load was compared.The results show that the maximum tensile stress of each structural layer of the widened expressway pavement significantly increases with the increase of differen-tial settlement and axle load.Without considering dynamic additional loads,the maximum tensile stress gener-ated by moving loads on the pavement structure layer is less than that of static loads.When considering dynam-ic additional loads,the maximum tensile stress on the pavement surface,base and subase of expressway wid-ening projects under different axle loads and differential settlement conditions is much greater than that under static loads.关键词
高速公路/重载/路面加宽/差异沉降/动态荷载Key words
expressway/heavy load/pavement widening/differential settlement/dynamic load分类
交通工程引用本文复制引用
WANG Pengfei,LIU Yuchen,LI Yuxin..动态重载对高速公路加宽工程路面结构受力的影响研究[J].天津建设科技,2025,35(6):21-24,4.基金项目
天津市交通运输科技发展计划项目(2021-24) （2021-24）
