基于温度-荷载耦合场的沥青路面抗裂分析

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英文篇名：Analysis on Crack Resistance of Asphalt Pavement Based on Temperature Load Coupling Field 作者：乔建刚 ; 王伟 ; 程璨 ; 田亚磊 英文作者：QIAO Jian-gang;WANG Wei;CHENG Can;TIAN Ya-lei;School of Civil Engineering,Hebei University of Technology;Tianjin Traffic Engineering Green Materials Technology Research Center; 关键词：沥青路面 ; 半柔性基层 ; 温度-荷载耦合场 ; 抗裂性能 英文关键词：asphalt pavement;;semi-flexible base course;;temperature-load coupling field;;crackresistant performance 中文刊名：公路 英文刊名：Highway 机构：河北工业大学土木与交通学院;天津市交通工程绿色材料技术研究中心; 出版日期：2019-08-13 16:40 出版单位：公路 年：2019 期：08 基金：国家安全生产监督总局科技项目,项目编号hebei-0009-2017AQ;; 交通运输部科技计划项目,项目编号2018-04-063;; 山西省交通运输厅科技计划项目,项目编号2017-1-36 语种：中文; 页：43-48 页数：6 CN：11-1668/U ISSN：0451-0712 分类号：U416.217

摘要

为了克服半刚性基层和柔性基层存在的缺点,提高沥青路面的抗裂性能,采用半柔性基层作为路面基层结构。通过相关环境调查和材料参数分析,选用ABAQUS有限元软件,构建了温度-荷载耦合场沥青路面结构模型,并进行了模拟计算,分析了不同沥青基层结构的应力强度因子和结构层不同位置的力学指标,结果表明半柔性基层兼有半刚性基层的强度和柔性基层的韧性,从力学表现上来说对于抑制裂缝的产生和发展,尤其是基层反射裂缝具有较好的效果。文章的结果可为沥青路面抗裂研究选用半柔性基层提供理论支持。
        In order to overcome the shortcomings of semi-rigid base course and flexible base course and improve the crack resistance of asphalt pavement,semi-flexible base course is used as the base course structure of pavement.Based on the related environment investigation and material parameter analysis,the temperature-load coupling field asphalt pavement structure model is constructed by using Abaqus finite element software,and the simulation calculation is carried out.The stress intensity factors of different asphalt base structures and the mechanical indexes of different positions of structure layers are analyzed.The results show that the semi-flexible base has both the strength of semi-rigid base course and the toughness of flexible base course,which have good effect on restraining the generation and development of cracks,especially the reflection cracks of base course.The results of this paper can provide theoretical support for the selection of semi flexible base course for asphalt pavement crack resistance study.

引文

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