摘要
为探究就地热再生沥青路面结构的真实受力状态,借助ABAQUS有限元软件,参考室内试验数据建立就地热再生沥青路面结构动力分析三维有限元模型,分析行车速度、车辆荷载、层间接触以及面层厚度对就地热再生沥青路面结构动力响应的影响规律。分析结果表明:总体上,车速越慢、车辆载重越大、层间粘结情况越差、面层厚度越薄,竖向位移、水平拉应力、最大剪应力的力学响应峰值越大,近似呈线性关系。分析结果可为就地热再生路面施工与养护提供参考。
In order to explore the actual stress state of hot in-place recycling asphalt pavement structure,the dynamic responses rules of hot in-place recycling asphalt pavement structure with different vehicle speeds,vehicle load,inter-layer contact and thickness of surface layer were analyzed by the established representative three-dimensional dynamic FEM of software ABAQUS and the indoor test data.The results show that,overall,the greater the peak value of dynamic responses when the slower speed,load increases,the worse inter-layer contact and the thinner the surface,and all are approximately linear.The analysis results can provide reference for the construction and maintenance of hot in-place recycling pavement.
作者
费壮
王宏畅
FEI Zhuang;WANG Hongchang(School of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China)
出处
《国防交通工程与技术》
2021年第5期29-33,共5页
Traffic Engineering and Technology for National Defence
关键词
公路运输
动力响应
有限元
就地热再生
移动荷载
highway transportation
dynamic response
finite element
hot in-place recycling
moving load
