国道与高速公路互通节点方案研究——以雷家店互通为例

Study on the Interchange Scheme between a National Road and an Expressway——Taking the Leijiadian Interchange as an Example

互通立交的方案设计应结合交通量预测数据进行使用功能、服务对象等方面的分析,再结合地形地物条件,布置符合地方路网的方案;以雷家店互通为例,分析了互通立交周边控制因素,对南北不同位置的设计方案进行了定位、功能比较,后对同一位置提出三个详细设计方案,并从行车安全、环境保护、降低造价等方面进行细致比选,最终选定推荐方案。方案和设计思路可为类似工程提供参考。

Scheme designs for interchanges should integrate the forecast data for traffic volume with analysis on related aspects,such as functions and services.Taking the interchange of Leijiadian as an example,it is analyzed peripheral controlling factors,comparing orientation and functions based on both southern and northern locations respectively.Three detailed designs are proposed for each site to select the recommended one after comprehensively comparing and contrasting road safety,environmental protection,and cost reduction.Different comparison schemes and design ideas can provide reference for similar projects.