SMA路面长期性能的调查分析及预测  

Investigation and prediction research on long-term performance of SMA pavement

作　　者：曾胜[1] 黄雄立[1] 

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410004

出　　处：《长沙理工大学学报（自然科学版）》2010年第1期12-17,共6页Journal of Changsha University of Science and Technology:Natural Science

基　　金：湖南省交通科技资助项目(200816)

摘　　要：为了掌握半刚性基层SMA路面的长期使用效果和路面使用寿命周期内的各项性能指标变化情况,对京港澳高速公路湖南临(湘)长(沙)段SMA和普通沥青混合料路段路面性能进行了逐年观测.在掌握半刚性路面典型病害在两路段的分布及发展情况的基础上,采用现场试验与灰色预测相结合的手段,选取了路面裂缝率、PCI、RQI和RDI反映SMA材料的长期抗裂、抗水损害和抗车辙能力.研究结果表明,SMA路面中后期的抗裂性能和抗水损害能力均能保持优良的水平,而车辙是其中后期最为突出的病害,其综合寿命比普通半刚性路面寿命长约4年.To master the long-term performance and the decay law of each performance index of semi-rigid SMA pavement in its service life,and to give some maintenance suggestions,the Lin-Chang section of Beijing-Hong Kong-Macao expressway has been year by year,and the distribution and development of typical damage of semi-rigid pavement was known,and cracking rate,PCI,RQI and RDI was selected to reflect the resistance of anti-crack,anti-water damage and anti-rut of asphalt mixture.The field test and grey prediction were carried out and the results show that the long-term performance of anti-crack and anti-water damage of SMA is much better than the common asphalt mixture.And rutting is its most outstanding damage,the service life of SMA is four years longer than common asphalt mixture.

关 键 词：道路工程 长期性能 预测 灰色理论 沥青玛蹄脂碎石 

分 类 号：U416.21[交通运输工程—道路与铁道工程]