摘要
为研究严酷气候环境下SBS改性沥青路面结构温度行为,选取青海省典型长期低温气象数据,基于实测路面材料热物性参数和粘弹性参数,采用Abaqus软件进行SBS改性沥青路面结构下的温度场研究,分析了不同路面结构层温度场变化规律。结果表明:道路路基顶面以下15cm范围内,在外界环境和路面结构层的影响下其温度呈线性变化且呈持续小幅升温趋势,而路面面层各深度处的温度随时间和外界环境呈现较为复杂的曲线变化。
In order to study the temperature behavior of SBS modified asphalt pavement structure under severe climatic environment,the typical long-term low-temperature meteorological data of Qinghai province is selected.Based on the measured thermal physical parameters and viscoelastic parameters of pavement materials,the temperature field under the structure of SBS modified asphalt pavement is studied by using Abaqus software and the variation laws of temperature field of different pavement structure layers are analyzed.The results show that:within the range of 15cm below the top surface of the road subgrade,the temperature changes linearly and continues to rise slightly under the influence of the external environment and the pavement structure layer,while the temperature at each depth of the pavement surface changes in a complex curve with time and the external environment.
作者
李文克
武书华
Li Wenke;Wu Shuhua(Henan Province Highway Engineering Bureau Group Co.,Ltd.,Zhengzhou 450052,China;Zhengzhou University of Aeronautics,Zhengzhou 450046,China)
出处
《北方交通》
2022年第7期57-61,共5页
Northern Communications
基金
青海省基础研究计划(2017-ZJ-715)
关键词
长期低温
SBS改性沥青
沥青路面
温度场
Long-term low temperature
SBS modified asphalt
Asphalt pavement
Temperature field
