基于ABAQUS的水泥稳定建筑废料基层厚度研究  

Study on the Thickness of Cement Stabilized Construction Waste Base Based on ABAQUS

作　　者：齐琳 赵锋 于海涛 QI Lin;ZHAO Feng;YU Hai-tao(Shenyang Urban Construction Institute,Shenyang Liaoning 110167,China;Southern Division of Tianjin Urban Construction Design Institute Co.,Ltd.,Shenzhen Guangdong 518000,China;School of Civil Engineering,Shenyang Jianzhu University,Shenyang Liaoning 110168,China)

机构地区：[1]沈阳城市建设学院,辽宁沈阳110167 [2]天津城建设计院有限公司华南分公司,广东深圳518000 [3]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《辽宁科技学院学报》2022年第5期1-6,共6页Journal of Liaoning Institute of Science and Technology

基　　金：国家自然科学基金-青年科学基金项目“基于多尺度耦合的水泥稳定碎石模量损伤演变机制研究”(51908378).

摘　　要：为了研究建筑废料中砖块含量对水泥稳定建筑废料基层的层底拉应力及疲劳开裂寿命的影响,对在不同砖块含量下,两种路面结构不同交通荷载等级的基层厚度变化规律进行分析。利用ABAQUS有限元软件对不同砖块含量的水泥稳定建筑废料基层进行模拟分析,得到不同工况下的层底拉应力变化规律,并计算不同工况下水泥稳定建筑废料基层疲劳开裂寿命。结果表明,随着建筑废料中砖块掺量的增加层底拉应力减小,当砖块含量一定时,随着基层或底基层的厚度增加,层底拉应力减小。通过本研究,提出了不同砖块掺量下,两种路面结构不同交通荷载等级下基层或底基层的合理厚度取值,为水泥稳定建筑废料基层沥青路面结构设计提供理论依据。In order to investigate the effect of brick content in construction waste on the bottom tensile stress and fatigue cracking life of cement stabilized construction waste base,the variation of base thickness of two pavement structures with different traffic load levels under different brick contents was analyzed.ABAQUS finite element software was employed to simulate and calculate the variation of bottom tensile stresses and fatigue cracking life of cement stabilized construction waste under different conditions.The results showed that the bottom tensile stress decreases with the increase of brick content in the construction waste.Under a given brick content,the tensile stress decreases as the thickness of the base or bottom increases.Through this study,reasonable thicknesses of the base or the bottom under different traffic loads of the two pavement structures with different brick contents were proposed to provide a theoretical basis for the design of asphalt pavement structures with cement stabilized construction waste bottom.

关 键 词：建筑废料 砖块含量 有限元 层底拉应力 疲劳开裂寿命 基层厚度 

分 类 号：U414[交通运输工程—道路与铁道工程]