摘要
为优化中国山区高速公路路面结构,适当降低面层厚度,减少工程造价,文中提出两层高模量沥青面层半刚性基层路面结构(High Modulus Pavement Structure,HM),利用ABAQUS有限元仿真软件对比分析该结构与三层沥青层半刚性基层(Semi-rigid Asphalt Pavement Structure,SR)、国外全厚式路面结构(Full-depth Asphalt Pavement Structure,FD)的力学响应特征与路面结构性能。研究发现,在相同荷载作用下,三种路面结构的关键力学指标符合质量验收标准,综合分析各项关键指标,三种路面结构性能显示SR>HM>FD。HM路面结构抗拉应变主要是整个沥青面层共同作用,而SR与FD路面结构抗拉应变层主要为沥青中面层与下面层。HM路面结构保证路面结构安全性的同时,减少了沥青面层厚度,降低了公路造价。
To optimize the pavement structure of expressways in mountainous areas of China,reduce the surface course thickness,and lower construction costs,this paper proposes a double-layer high modulus asphalt surface course with semirigid base course structure(High Modulus Pavement Structure,HM).The mechanical response characteristics and structural performance of this HM structure are compared with those of a three-layer asphalt surface course with semi-rigid base course(Semi-rigid Asphalt Pavement Structure,SR)and a full-depth asphalt pavement structure commonly used abroad(Full-depth Asphalt Pavement Structure,FD)using the ABAQUS finite element simulation software.The study finds that under the same load,the key mechanical indicators of all three pavement structures meet the quality acceptance criteria.A comprehensive analysis of the key indicators reveals that the performance ranking of the three structures is SR>HM>FD.The tensile strain resistance of the HM structure is primarily contributed by the entire asphalt surface course,while for the SR and FD structures,the tensile strain is mainly concentrated in the middle and bottom asphalt layers.The HM pavement structure ensures the safety of the pavement structure while reducing the thickness of the asphalt surface course,thereby lowering highway construction costs.
作者
陆玉春
贺良
何荣龙
韦梦贤
谢瑾
Lu Yuchun;He Liang;He Ronglong;Wei Mengxian;Xie Jin(Guangxi Shangheng Expressway Co.,Ltd.,Nanning Guangxi 530409,China)
出处
《山西建筑》
2026年第4期108-112,125,共6页
Shanxi Architecture
基金
基于高性能材料的全寿命周期沥青路面研究(项目编号:2022-ZD7-131)。
关键词
路面结构
高模量沥青路面
有限元仿真力学响应
路面结构强度
pavement structure
high modulus asphalt pavement
finite element simulation mechanical response
pavement structure strength
