南宁市快速环路邕武立交改扩建设计研究  

Research on Reconstruction and Extension Design of Yongwu Interchange in Nanning City Ring Expressway

作　　者：庞赞龙 岑祚民 PANG Zanlong;CEN Zuomin

机构地区：[1]华蓝设计(集团)有限公司,广西南宁530011

出　　处：《城市道桥与防洪》2021年第4期8-11,共4页Urban Roads Bridges & Flood Control

摘　　要：为破解南宁市“快环不快”交通困局,对沿线交通节点进行整治改善十分必要。以快速环路邕武立交改扩建工程为例,对城市互通立交改扩建设计进行了研究。在对邕武立交现状、存在的问题、立交功能及交通特点进行分析的基础上,梳理了立交改造思路,总结了立交方案选择的要点。基于现状和改造后的立交型式分别建立微观仿真模型,对立交改造后效果进行分析。结论为:立交改造后,交通顺畅、连续,改善效果显著。最后总结指出:城市改扩建立交的功能定位应与城市总体规划、综合交通规划相适应,在满足交通需求的前提下,从征地拆迁、工程投资等多方面进行方案比选;设计方案应便于施工组织,减少改扩建工程对既有道路交通和沿线居民生产生活的影响。In order to solve the traffic dilemma of"fast ring but not fast"in Nanning,it is necessary to improve the traffic nodes along the route.Taking the reconstruction and extension project of Yongwu interchange in Nanning City Ring Expressway as an example,a research is made on the design of the reconstruction and extension of urban interchange.Based on the analysis of the current situation,existing problems,functions and traffic characteristics of Yongwu Interchange,the idea of interchange transformation is combed and the key points of the interchange scheme selection are summarized.Micro-simulation models were established based on the respective current situation and the improved interchange type for the analysis of the effect of the improved interchange reconstruction.It is concluded that the traffic is smooth and continuous,the service level is upgraded from F to C,and the improvement effect is significant after the interchange transformation.It is finally concluded that the function orientation of urban interchange reconstruction and expansion should be adapted to the overall urban traffic planning and the existing interchange,and the existing interchange should be comprehensively investigated and analyzed.On the premise of meeting the traffic demand,the scheme comparison should be carried out from the aspects of land acquisition,demolition and removal,project investment,and etc.The design scheme should be convenient for construction and organization so as to reduce the negative impact of reconstruction and extension of the project on the existing road traffic and the production and life of residents along the route.

关 键 词：城市互通立交 改扩建设计 方案比选 模型仿真评价 

分 类 号：U412.35[交通运输工程—道路与铁道工程]