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作为交通转换节点的互通式立交是高速公路中重要的组成部分。因此,在高速公路互通式立交扩建过程中,如何保证各方向交通流的正常行驶、减小因扩建施工对交通流的影响、保证道路行车畅通安全成为扩建施工中一个亟待解决的问题。该文以京港澳高速公路改扩建项目中的永年互通为例,对高速公路中常见的单喇叭形互通式立交改扩建工程施工期间的路基、路面、桥梁等方面交通组织进行了论述,可为其他改扩建工程中互通式立交的施工期交通组织设计提供借鉴。
Interchange as a transit node is an important part of the freeway. Therefore, how to ensure the normal traffic flow in all directions and how to reduce the traffic flow impact caused by the expansion construction and ensure the traffic safety of the road has become an urgent problem to be solved in the extension construction during the process of express interchange. Taking the example of Yongnian Reach in the reconstruction project of Beijing-Hong Kong-Macau Expressway, this paper discusses the traffic organization in the subgrade, pavement and bridge during the single-trumpet interchange construction in the expressway, which may be Other Reconstruction and Extension Project Interchanges during the construction of traffic organization design to provide reference.