高速公路交通诱发环境振动隔振屏障数值分析  

The Numerical Analysis of Highway Vibration Isolation by Barrier

作　　者：李思璐[1] 叶茂[2] 

机构地区：[1]广州城建职业学院,广州510925 [2]广州大学-淡江大学工程结构灾害与控制联合研究中心,广州510006

出　　处：《广东土木与建筑》2013年第9期62-64,41,共4页Guangdong Architecture Civil Engineering

基　　金：广东省自然科学基金项目(S2011040004020)

摘　　要：针对某高速公路周边古遗址展览区建设工程的需要,采用数值模拟法开展隔振沟屏障阻隔高速公路诱发环境振动的研究,获取隔振沟参数对振动阻隔效果的影响,结果表明当空沟屏障远场隔振时,隔振效果随沟深增大而增加,沟宽则影响不明显;当填充沟屏障远场隔振时,柔性材料的隔振效果优于刚性材料,该成果可为高速公路周边古遗址保护提供技术支持。In view of the needs of building exhibition for the acient site which is near to the highway,the numerical simulation method is used to study the effects of various factors on barrier isolation. The results show that the effect of vibration reduction is improved with the depth increasing for barrier at far field,the width has little effect on vibration reduction,flexible material is better than that of rigid materials for in-filled trench barrier. The achievements can provide technology support for site protection.

关 键 词：环境振动 高速公路 古遗址 屏障隔振 

分 类 号：U491.91[交通运输工程—交通运输规划与管理]