摘要
在分析水泥混凝土路面接缝错台产生机理的基础上,对国外八大横向接缝错台预估模型进行对比研究。结果表明:接缝错台变化随着时间的推移增幅逐渐减小,最后趋于平缓;板底支承变形能量、基层和路基的侵蚀指数以及自由水指数是所有模型均考虑的影响因素;设传力杆能显著减小接缝错台量;路肩类型也是影响接缝错台变化的重要因素。最后给出了对应的降低接缝错台量的措施。
Based on the mechanism analysis of joint faulting of cement concrete pavement,this paper studies comparatively the eight foreign prediction model of joint faulting in the world.The result shows that the growth rate of joint faulting decreases as the time goes on,and the final leveling is off.The bottom bearing deformation energy,the erosion index of base and subgrade,and the free water index are the influential factors to be considered.The dowel bar will significantly reduce the joint faulting.And the shoulder type is also the important factor that affects joint changes.Finally,the corresponding measures to reduce the joint faulting are given.
作者
李晶晶
王占锋
LI Jingjing WANG Zhanfeng(School of Highway and Railway Engineering, Shaanxi College of Communication Technology, Xi＇an 710018, China School of Highway, Chang＇an University, Xi＇an 710064, China School of Civil and Geodesy Engineering,Shaanxi College of Communication Technology, Xi＇ an 710018, China)
出处
《交通科技与经济》
2017年第1期54-58,共5页
Technology & Economy in Areas of Communications
基金
浙江省交通运输厅科研计划项目(2014H38)
陕西省教育科学十二五规划项目(SGH140930)
关键词
道路工程
水泥混凝土路面
错台
预估模型
措施
road engineering
cement concrete pavement
faulting
prediction model
measure
