北京经济技术开发区太和东桥主线拓宽改造方案研究

Study on Widening and Reconstruction of the Main Line of Taihedong Bridge in Beijing Economic and Technological Development Zone

摘要:

为增加太和东桥立交节点南北向的通行能力，对太和东桥主线拓宽改造工程进行了方案分析研究。通过对现状条件的梳理、对规划方案的解读、对项目功能的分析理解，确定了拓宽改造工程的设计原则，对两侧拓宽、两侧新建、东侧新建3个改造方案进行了比选，并对推荐方案（东侧新建）从平面线位、纵断面、横断面及路面结构三方面进行了方案综述，对如何在利用现有资源、避免大拆大建的基础上改造立交节点，满足交通需求进行了归纳总结。

Abstract:

In order to increase the traffic capacity of the interchange node of Taihedong Bridge, a scheme analysis and study was carried out on the project of widening and reconstructing the main line of Taihedong Bridge. After combing the current conditions, interpreting the planned scheme and analysing the project function, the design principles for the widening and reconstruction of project are determined. In this paper, the three reconstruction schemes of widening on both sides, building on both sides and building on the east side are compared and contrasted. The recommended scheme of building on the east side is reviewed from the three aspects of flat line position, vertical section, cross-section and pavement structure. It is summarized in this paper how to transform the interchange node to meet the traffic demand on the basis of using existing resources and avoiding large scale demolition and construction.