功能叠加型立交改造方案设计探讨

随着社会经济的发展，交通量迅速增长，路网不断更新升级，早年的高速公路面临改扩建的问题，而建成区多种功能叠加的高速公路立交布设成为改扩建的重点和难点。以广深高速鹤州立交改造工程为例，探讨重交通量下高速公路功能叠加型立交改扩建设计的技术思路，分析设计中遇到的问题，总结相应的设计原则并提出具体的方案。

Design of Function-Superimposed Interchange Reconstruction Program

With the rapid development of the social economy, the road network is being updated and upgraded. The early built expressways are faced with reconstruction and expansion. The setting of multifunction- superimposed interchange at built-up area is an emphasis and difficulty. Taking the reconstruction of Hezhou Interchage at Guangzhou-Shenzhen Expressway as example, the paper discusses the technical idea of the reconstruction and expansion design of multifunction- superimposed interchange on expressway with heavy traffic, analyzes the problems existing in design, summarizes corresponding design principles and proposes detailed schemes.