长期服役状态下既有沥青路面结构延寿关键技术综述  

Review on Critical Technologies for the Service Life Extension of Existing Asphalt Pavement Structures Under Long-term Service Conditions

作　　者：于新 陈晨[2] 董夫强 朱浩然 董晨 蔡猛 宋佳辉 YU Xin;CHEN Chen;DONG Fu-qiang;ZHU Hao-ran;DONG Chen;CAI Meng;SONG Jia-hui(School of Traffic and Transportation Engineering,Changsha University of Science and Technology,Changsha 410114,Hunan,China;College of Civil and Transportation,Hohai University,Nanjing 210098,Jiangsu,China)

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410114 [2]河海大学土木与交通学院,江苏南京210098

出　　处：《中国公路学报》2024年第12期161-181,共21页China Journal of Highway and Transport

基　　金：国家重点研发计划项目(2021YFB2601200);国家自然科学基金青年项目(52408478)。

摘　　要：针对既有沥青路面结构存量巨大且老龄化严重的现状,延长既有沥青路面结构的服役寿命已成为交通行业持续发展的战略需求。以长期服役状态下的既有沥青路面结构为研究对象,综述了国内外关于路面结构健康状态检测及评价、性能演化规律与寿命预测、结构延寿设计方法、专用结构及靶向材料研发等4项延寿关键技术的进展。首先,介绍了探地雷达等全域无损检测技术在路面结构内部状况和承载力评价中的应用现状;其次,系统总结了足尺试验法、有限元法和离散元法在路面结构力学性能响应及性能衰减规律研究中的优势和局限性;在此基础上,梳理了既有沥青路面结构延寿设计的思路和参数的获取方法,并归纳了疲劳和永久变形量的验算模型以及延寿结构组合;最后,总结了不同层位和性能需求的既有沥青路面结构延寿材料与技术。建议未来研究应结合全域评价指标,分析既有沥青路面结构的性能衰减特征,建立剩余寿命预估模型和延寿设计方法,开发高性能补强材料,助力既有沥青路面结构延寿。Given the substantial volume and significant aging of existing asphalt pavement structures,extending their service lives has become a strategic requirement for the sustainable development of the transportation industry.This study focuses on existing asphalt pavement structures in long-term service and provides a comprehensive review of the research progress in four key technologies for extending service life:health condition detection and assessment,performance evolution and life prediction,life extension design methods,and research and development of specialized structures and targeted materials.First,the current applications of nondestructive testing techniques,including ground-penetrating radar,are presented to evaluate the internal conditions and bearing capacities of pavement structures.Second,the advantages and limitations of full-scale testing,the finite element method,and the discrete element method for studying the mechanical performance responses and degradation of pavement structures are systematically summarized.Based on these results,design strategies and parameter acquisition methods for extending the life of existing asphalt pavement structures are reviewed.This paper also summarizes the verification models for fatigue and permanent deformation as well as life-extending structural combinations.Finally,life-extension materials and technologies for different pavement layers and functional requirements are summarized.Future research is recommended to integrate comprehensive evaluation indicators,analyze the performance degradation characteristics of existing asphalt pavement structures,establish remaining life prediction models and life extension design methods,and develop high-performance strengthening materials to extend the service lives of asphalt pavement structures.

关 键 词：路面工程 既有沥青路面 综述 延寿技术 健康评价 寿命预测 设计方法 

分 类 号：U414[交通运输工程—道路与铁道工程]