山区高速公路互通立交克服大高差设计探讨

Discussion on Overcoming Large Height Difference Design for Interchanges on Freeways in Mountainous Areas

在山区地形的复杂背景下,互通立交的设计不仅要应对地形高差的问题,还需考虑通行流畅性、结构稳定性、环境保护和合理匝道布局等多方面的要素。通过深入研究互通形式选定、匝道设计通行能力、匝道设计速度、匝道平纵设计、匝道超高加宽设计等关键方面,文章在山区高差地形条件下进行互通立交设计的实用经验和指导。通过文章的探讨,希望能够为山区高速公路的可持续发展提供有益的建议,促进更科学、前瞻的设计理念在工程实践中的应用。

In the complex terrain of mountainous areas,the design of interchanges not only needs to address the issue of terrain elevation differences,but also needs to consider various factors such as traffic smoothness,structural stability,environmental protection,and reasonable ramp layout.Through in-depth research on key aspects such as the selection of interchange forms,ramp design capacity,ramp design speed,ramp horizontal and vertical design,and ramp superelevation and widening design,this article provides practical experience and guidance for interchange design in mountainous terrain conditions with altitude differences.Through the discussion of the article,it is hoped that useful suggestions can be provided for the sustainable development of mountainous highways,and the application of more scientific and forward-looking design concepts in engineering practice can be promoted.