公路两侧拓宽对水泥路面结构的影响研究  

Effect of Both Sides of the Road Widening on Cement Pavement Structure

作　　者：周斌华 

机构地区：[1]衡阳市公路管理局,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2014年第2期109-112,共4页Journal of University of South China：Science and Technology

摘　　要：公路改建时路基拓宽方式主要有单侧拓宽和两侧拓宽,公路路基不同拓宽方式影响水泥路面板纵缝布设.本文利用有限元方法建模,得出公路路基两侧拓宽时车辆荷载、温度等因素作用下水泥路面板的应力变化,分析纵向裂缝产生的原因,为公路路基拓宽改建设计与施工提供依据.The main methods of subgrade widening of highway reconstruction： unilateral widening and widening on both sides,longitudinal seam design of cement pavement are affected by the different ways of highway subgrade widening. In this paper,analysis model is established by the finite element method,when both sides of the highway subgrade widening stress changes of cement pavement are analyzed under vehicle load,temperature and etc,the reason of longitudinal crack are analyzed,which provide the basis for reconstruction of highway subgrade widening design and construction.

关 键 词：公路路基拓宽 水泥路面板 纵向接缝 不均匀沉降 

分 类 号：U416.2[交通运输工程—道路与铁道工程]