改扩建工程公路桥搭板坡度差异沉降控制技术研究  

Research on Slope Differential Settlement Control Technology of Highway Bridge Approach Slabs in Reconstruction and Expansion Projects

作　　者：孙佳星 SUN Jiaxing(Pingdingshan Highway Traffic Survey and Design Institute,Pingdingshan 467000,China)

机构地区：[1]平顶山市公路交通勘察设计院,河南平顶山467000

出　　处：《科技创新与生产力》2023年第8期58-60,63,共4页Sci-tech Innovation and Productivity

摘　　要：为分析公路改扩建中路桥过渡段差异沉降的控制方法及行车舒适性的影响因素,本文以某省道325漯嵩线公路改扩建工程为例,提出了控制差异沉降的方法,并构建了车辆瞬态振动模型,探讨了影响行车舒适性的主要因素。结果显示,路桥过渡段布置搭板、搭板坡度、坡度变化率、搭板长度等是影响差异沉降控制与行车舒适性的主要因素。In order to analyze the control method of differential settlement in the transition section of road and bridge in the reconstruction and expansion of highway and the factors affecting driving comfort,taking the reconstruction and expansion project of a provincial highway 325 Luosong Line as an example,the method of controlling differential settlement is proposed,and the vehicle transient vibration model is constructed,and the main factors affecting driving comfort are discussed.The results show that the layout of approach slab,the slope of approach slab,the slope change rate,and the length of approach slab are the main factors affecting the differential settlement control and driving comfort.

关 键 词：公路改扩建 路桥过渡段 差异沉降 跳车现象 搭板 坡度 行车舒适性 

分 类 号：U416.1[交通运输工程—道路与铁道工程] U416.2[机械工程—车辆工程] U461[交通运输工程—载运工具运用工程]