公路桥头路基EPS垫层的隔振分析  

Analysis of EPS Cushion on Bridge Head Embankment of Highway

作　　者：丁国洪[1] 陈龙珠[1] 

机构地区：[1]上海交通大学建工学院,上海市200240

出　　处：《公路》2004年第3期30-34,共5页Highway

摘　　要：公路桥头路基跳车现象是道路中普遍存在的问题 ,目前国内外尚没有非常有效的处理措施 ,虽有大量的相关研究 ,但分析与研究内容多局限于减小地基的附加应力以达到控制沉降差的目的。试图从动力学角度出发 ,对柔性路面路基的桥头路基跳车进行动力分析 ,并针对当前施工中的新技术 -采取聚苯乙烯泡沫塑料工法 (EPS)的隔振性能进行了有限元分析 。Bridge head-embankment bumping is a common issue in highway,so far there are not effective methods to solve it .In order to control settlement,most of research findings are restricted to reduce additional stress. The dynamic response for bumping on flexible pavement is analyzed briefly in the paper, Taking into account the new method-expanded polystyrene (EPS) and using finite-element method (FEM),the effect of vibrating isolation of expanded polystyrene foundation is deliberately analyzed,in order to provide some guides for engineering design and construction .

关 键 词：公路桥 桥头路基跳车现象 EPS垫层 隔振分析 动力分析 聚苯乙烯泡沫塑料工法 

分 类 号：U448.14[建筑科学—桥梁与隧道工程] U443.82[交通运输工程—道路与铁道工程]