南宁市三津立交桥方案选型研究

摘要:

城市互通立交选型的合理与否,不仅直接影响到整个立交的功能和投资,也关系到远期社会经济综合效益的发挥,它是一个多指标综合决策的结果。三津立交桥为南宁市快速路和主干路相交的枢纽型互通立交,本文在立交功能定位分析和交通量预测的基础上,结合实际地形地貌和限制要素,阐述了该立交设计选型设计思路,通过对三种立交方案进行综合分析比较,确定了立交方案。通过本工程的实例,可以为城市立交的设计人员提供参考。

Abstract:

Whether the alignment selection of urban interchanges is reasonable not only directly affects its function and investment, but also relates to the long-term social and economic comprehensive benefits. It is the result of a multi-index comprehensive decision-making. The Sanjin Overpass is a hub-type interchange that is intersected by the expressway and the main road in Nanning. Based on the functional positioning analysis and traffic volume prediction, this paper expounds the design ideas of the interchange in combination with the actual topography and restriction factors. A comprehensive analysis and comparison of three overpass schemes was carried out, and the overpass scheme was determined. Through the example of this project, it can provide reference for designers of urban interchanges.