摘要
为了探究铺筑ATB层的组合式基层沥青路面在重冻地区的适用性,采用ABAQUS有限元软件搭建了3类不同道路结构形式的有限元计算模型,并研究了在严寒、短时强降温条件下,不同结构路面的温度应力响应。结果表明,组合式基层沥青路面在重冻地区适用性较好,外界气温和降温幅度是影响沥青路面温度应力的主要因素,增加ATB层的厚度和模量会使ATB层底产生更大的温度应力,因此需加强路面中面层材料和ATB本身的抗裂能力。
In order to explore the applicability of composite base asphalt pavement with the asphalt-treated base(ATB)layer in heavy frozen areas,three types of finite element calculation models for different road structural forms was built by ABAQUS finite element software.The temperature stress response of different pavement structures were studied under severe cold and short-term strong cooling conditions.The results indicate that the composite base asphalt pavement has good applicability in heavy frozen areas.The external temperature and cooling amplitude are the main factors affecting the temperature stress of asphalt pavement.That increasing the thickness and modulus of ATB layer will cause greater temperature stress at the bottom of the ATB layer.Therefore,it is necessary to strengthen the crack resistance of the surface material and ATB itself in the pavement.
作者
尹国宏
张平
李博
崔永昌
Yin Guohong;Zhang Ping;Li Bo;Cui Yongchang(Heilongjiang Province Highway Construction Center,Harbin 150000,China;Heilongjiang Provincial Transportation Planning and Design Institute Group Co.,Ltd.,Harbin 150000,China;Harbin Institute of Technology,Harbin 150000,China)
出处
《市政技术》
2023年第10期94-100,共7页
Journal of Municipal Technology
基金
黑龙江省优秀青年基金(YQ2021E032)
黑龙江省交通运输厅科持项目“重冻地区高速公路沥青路面ATB过渡层适用性研究”。
关键词
重冻地区
温度场
温度应力
沥青路面
有限元法
ATB
heavy frozen areas
temperature field
temperature stress
asphalt pavement
finite element method
asphalt-treated base(ATB)
