碳纤维土工格栅加筋沥青路面面层组合体抗车辙性能研究  

Research on the Rutting Resistance of Carbon Fiber Geogrid Reinforced Asphalt Pavement Surface Combined Body

作　　者：王志强[1,2] 杨广庆[1,2,3] 蒲昌瑜[4] 梁训美 WANG Zhi-qiang;YANG Guang-qing;PU Chang-yu;LIANG Xun-mei(State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Key Laboratory of Traffic Safety and Control in Hebei,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Key Laboratory of Roads and Railway Engineering Safety Control,Ministry of Education,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Hebei Provincial Communications Planning,Design and Research Institute Co.Ltd.,Shijiazhuang 050300,China;Shandong Road New Materials Co.Ltd.,Tai'an 271000,China)

机构地区：[1]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,石家庄市050043 [2]石家庄铁道大学河北省交通安全与控制重点实验室,石家庄市050043 [3]石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室,石家庄市050043 [4]河北省交通规划设计院有限公司门,石家庄市050300 [5]山东路德新材料股份有限公司,泰安市271000

出　　处：《公路》2025年第4期16-25,共10页Highway

基　　金：国家自然科学基金项目,项目编号52079078;石家庄铁道大学研究生校级创新项目,项目编号YC202441。

摘　　要：目前,境内对碳纤维类土工格栅防治沥青路面车辙问题的研究处于起步阶段。通过对碳纤维土工格栅和玻/碳纤维复合格栅等不同土工格栅加筋沥青路面面层组合体进行室内车辙试验,研究了土工格栅类型和面层组合体类型对抗车辙性能的影响;分析了两因素对沥青路面面层组合体抗车辙性能的影响程度。此外,通过引人“动稳定度增强率”、“最大车辙深度减少率”来评价不同碳纤维类土工格栅加筋面层组合体的性能。试验结果表明:在车辙试验过程中,碳纤维土工格栅发挥加筋作用的时间早于玻/碳纤维复合格栅。通过双因素方差分析法可知,土工格栅类型和面层组合体类型对抗车辙性能试验参数均有显著地影响,但影响程度顺序为土工格栅类型>面层组合体类型。在改善沥青面层组合体抗车辙性能方面,碳纤维土工格栅优于玻/碳纤维复合格栅。在AC一13/AC一20组合情况下,碳纤维土工格栅加筋的动稳定度增强率是玻/碳纤维复合格栅的1.32倍,而最大车辙深度减少率是2.82倍,体现了纵横肋性能差异性是影响碳纤维类土工格栅加筋的抗车辙性能的重要因素。AC一20/AC一25组合的提升作用低于AC一13/AC一20组合,动稳定度增强率降低了9%以上,最大车辙深度减少率降低了50%以上。该试验结果可为碳纤维类土工格栅加筋沥青路面抗车辙性能研究提供试验基础。At present,the researches on the prevention and control of the rutting resistance of asphalt pavement by carbon fiber-based geogrid is still at the initial stage in China.Through the indoor rutting tests on the asphalt pavement surface combined bodies with two geogrids of carbon fiber geogrid and glass/carbon fiber composite qualified geogrid,the effects of geogrid type and surface combined body type on the rutting resistance of asphalt pavement surface combined bodies are studied,and the degrees of influence of two factors on the rutting resistance of asphalt pavement surface combined bodies are analyzed.The performance of different carbon fiber-based geogrid reinforced asphalt pavement surface combined bodies is evaluated by bringing in the indexes dynamic stability enhancement rate and maximum rut depth reduction rate.The results show that the reinforcing effect of carbon fiber geogrid occurs earlier than that of glass/carbon fiber composite qualified geogrid in the rutting process.Through the two factor analysis of variance method,the geogrid type and the surface combined body type have a significant influence on the test parameters of the rutting resistance,but the order of degrees of influence ranks as geogrid type>surface combined body type.The rutting resistance of carbon fibre geogrid reinforcement is better than that of glass/carbon fibre composite qualified geogrid reinforcement.In the case of the AC-13/AC-20 combination,the dynamic stability enhancement rate of carbon fiber geogrid reinforcement is 1.32 times that of glass/carbon fiber composite qualified geogrid reinforcement,and the maximum rut depth reduction rate is 2.82 times.The variability of longitudinal and transverse rib properties is an important factor affecting the rutting resistance of carbon fibre-based geogrid reinforced asphalt pavement surface combined bodies.The lifting effect of AC-20/AC-25 combination is lower than that of AC-13/AC-20 combination.The enhancement rate of dynamic stability decreases by more than 9%.The reduction rat

关 键 词：道路工程 面层组合体 碳纤维土工格栅 车辙试验 抗车辙性能 双因素方差分析 

分 类 号：U416.217[交通运输工程—道路与铁道工程]