摘要
山区高速公路互通式立交改造工程要尽量利用原互通、减少工程量、降低工程造价。结合工程实例,介绍了如何综合考虑互通位置,兼顾主线指标,通过合理利用既有互通部分匝道,满足各匝道平纵指标要求,最终确定了合理的设计方案,为类似工程提供参考。
The original interchange should be utilized as much as possible in the reconstruction project for the interchange of the expressway in rmountainous area,so as to decrease the project quantity and reduce the construction cost.In combination with the project case,the comprehensive consideration of interchange position is introduced,taking the principal line into account.The reasonable design scheme is finally determined by reasonably utilizing part of ramp of the existing interchange and meeting the requirement of cross and vertical indexes for each ramp,so as to provide reference for similar projects.
作者
徐海楠
Xu Hainan(Liaoning Highway Surveying and Designing Company,Shenyang 110006,China)
出处
《北方交通》
2021年第7期34-37,共4页
Northern Communications
关键词
互通式立交改造
互通位置选定
平纵指标优化
Interchange reconstruction
Selection of interchange position
Cross and vertical indexes optimization
