华东交通大学学报2016，Vol.33Issue(5)：7-11,32,6.
南沙港铁路鸡鸦水道公铁合建段线间距研究
Research on Line Spacing in Highway and Railway Combined Section of Jiya Waterway Bridge on Nansha Port Railway Line
张晋云1
作者信息
- 1. 广州铁路职业技术学院轨道交通学院,广东 广州 510430
- 折叠
摘要
Abstract
By taking the highway and railway combined section Jiya Waterway Bridge on Nansha Port railway line as the research object, this paper studies influences of different line spacing selecting on the project con-struction. Firstly, two schemes of 17m variable line spacing and 4m line spacing for Jiya Waterway Bridge are researched systematically. After testing the stress of the bridge and calculating the eccentricity, it finds out that the scheme of 17m variable line spacing can maximize the use of bridge piers for the existing highway, but the construction process has effects on sailing tracks of the waterway. Meanwhile, the scheme of 4m can lessen land use to the maximal degree and optimize the sailing tracks of the waterway, which is adopted accordingly. Fur-thermore, this research calculates the curve widening values of transition intersections reasonably to reduce land use according to the superelevation and profile. It concludes that selecting the line spacing scientifically is of great significance for the special railway project with the highway construction constructed in different periods.关键词
线间距/曲线加宽/公铁合建/内侧缓和曲线长度Key words
line spacing/curve widening/combined highway and railway structure/inside transition curve length分类
交通工程引用本文复制引用
张晋云..南沙港铁路鸡鸦水道公铁合建段线间距研究[J].华东交通大学学报,2016,33(5):7-11,32,6.
