公路路基横断面超高加宽计算及设计  

作　　者：高昌泉 

机构地区：[1]安徽省交通规划设计研究总院股份有限公司,合肥230000

出　　处：《科技创新与应用》2024年第29期130-133,共4页Technology Innovation and Application

摘　　要：该文主要探究公路路基横断面的超高计算和加宽计算方法,以及路基横断面的设计要点。在公路平曲线超高计算中,重点考虑绕中轴旋转和绕内边轴旋转2种形式下超高值计算方法;在公路平曲线加宽计算中,除计算加宽值外,还考虑直线段与平曲线段过渡区域的渐变率,保证2种路段的流畅衔接。在横断面设计中,要注意填方路基和挖方路基的横断面处理方式存在差异。对于分离式路基,在路堤与路堤、路堤与路堑的拼合处理中,要设置线间沟和边坡,并且合理设计线间沟的宽度,确保分离式路基能够拼合成为整体,减少公路出现贯通裂缝的几率。This paper mainly probes into the superelevation calculation and widening calculation method of highway roadbed cross section,as well as the design key points of roadbed cross section.In the superelevation calculation of highway horizontal curve,the superelevation calculation methods of rotating around the middle axis and rotating around the inner axis are mainly considered.In addition to calculating the widening value,the gradual change rate of the transition region between the straight line section and the flat curve section is also considered to ensure the smooth connection of the two road sections.In the cross-section design,it should be noted that there are differences in cross-section treatment between filled roadbed and cut roadbed.For the separated roadbed,in the combination of embankment and embankment,embankment and cutting,the inter-line ditch and slope should be set up,and the width of the inter-line ditch should be designed reasonably to ensure that the separated roadbed can be assembled into a whole and reduce the probability of through cracks in the highway.

关 键 词：路基横断面 全面加宽值 分离式路基 路基拼合 设计方法 

分 类 号：U412.33[交通运输工程—道路与铁道工程]