摘要
针对中国重载旧混凝土路面加铺设计方法不完善的现状,依托夏家营-汾阳高速公路旧混凝土路面加铺改造工程这一成功实践,分析了重交通旧水泥路面加铺中面板及加铺层的力学响应,考虑板底脱空对沥青加铺层预期寿命的影响,提出基于力学-经验的重载条件下沥青加铺层设计方法.与中国规范方法相比,该方法将旧路面状况对加铺层反射裂缝的影响考虑在内,保证加铺层在3年内不出现反射裂缝.
In view of the imperfection of design method of asphalt overlay on old cement under heavy-load traffic, with the background of a successful practice of repaying improvement project in Xia Jiaying-Fen Yang expressway, this article analyzes the mechanical response of the old cement concrete road slab and the overlay, takes the influence of the void under slab on the life expectancy of asphalt overlay into account, and advances the mechanistic-empirical design process of asphalt overlay under heavy-load traffic. In comparison with Chinese standard, this method takes the influence of old concrete pavement on the reflective cracking of overlay into consideration, which ensures that there is no reflective cracking on the overlay in 3 years.
出处
《辽宁工程技术大学学报(自然科学版)》
CAS
北大核心
2014年第10期1357-1362,共6页
Journal of Liaoning Technical University (Natural Science)
基金
交通部基础应用资助项目(2011-319-771-080)
黄土地区公路建设与养护技术交通行业重点实验室开放课题基金资助项目(KLTLR-Y11-7)
山西省交通厅科技基金资助项目(08-01)
关键词
重载交通
白加黑
夏汾高速
力学响应
沥青加铺层
heavy-load traffic
white & black
Xia-Fen expressway
mechanical response
asphalt overlay