摘要
在有些桥梁建设中,需要在与被交道路存在较大高差的情况下设置互通式立交。广东省虎门二桥工程海鸥岛互通立交与连接道路存在着50多米的高差,在该立交方案设计过程中,分析研究了多种新型环形互通立交布置方案。新型环形互通立交不仅造型美观、结构对称、行车转向明确,而且具有克服大高差、增大匝道长度、减缓匝道纵坡、节省用地的特点。
The interchange is constructed in some bridges when it has large elevation difference with crossing road. The Gull Island interchange of Hurnen second bridge in Guangdong exists more than 50 meters elevation difference with the connecting road. During the interchange scheme design, it analyzed various new circular interchanges layout scheme. New ring interchange, is not only beautiful shape, symmetry and steering clear of train structure, but also overcome the large elevation difference, in- crease the length of the ramp, the characteristics of the slow ramp longitudinal slope, saving land. The new ring interchange not only has beautiful shape, symmetry structure, clear steering of drive, hut also has characteristics of overcome the large elevation difference, increase the length of the ramp, slow down the ramp longitudinal slope and saving land.
出处
《内蒙古公路与运输》
2015年第1期8-10,共3页
Highways & Transportation in Inner Mongolia
关键词
互通立交
大高差
虎门二桥
设计
interchange
large elevation difference
Humen second bridge
design
