摘要
重载作用下长大纵坡沥青路面常出现车辙、推移、开裂等病害。以鞍隆线二级公路长大纵坡病害路段的治理工程为研究对象,调查其交通状况,路面工作状况,分析该段路面损坏的影响因素和破坏机理,提出用于旧路维修的路面结构设计方案,对面层SMA混合料进行设计,检验其动稳定度、渗水系数、劈裂强度、构造深度等性能,并铺筑了试验路段,后期观测结果良好。
Asphalt pavement of large longitudinal slope often appears rutting, lateral displacement, cracking and other damages under the action of overloading. Taking the damaged section of large longitudinal slope in An-Long secondary road as the research object, its traffic conditions and pavement working conditions were investigated, the influence factors of road damage and failure mechanism were analyzed, pavement structure design scheme for old road maintenance was proposed, and the design of surface SMA mixture was carried on ; the dynamic stability, seepage coefficient, splitting strength, structural depth, etc were examined, the test road section was paved and the late observations performed well.
出处
《路基工程》
2017年第5期136-139,163,共5页
Subgrade Engineering
基金
辽宁省公路管理局公路科研项目(201402)
关键词
旧路维修
长大纵坡
路面结构
SMA混合料
old road maintenance
large longitudinal slope
pavement structure
SMA mixture
