我国首个“6车道改12车道” 高速公路改扩建项目建成通车

Core Insights - The first "6-lane to 12-lane" highway expansion project in China, the Jingtai Expressway from Qihe to Jinan, has been completed and opened to traffic, marking the full upgrade of the Jingtai Expressway in Shandong Province [1][2] Group 1: Project Overview - The Jingtai Expressway Qiji section expansion project is invested and constructed by Shandong Highway Group, spanning 23.999 kilometers from the Yancheng Hub of the Jinan Ring Expressway to the Yinjialin Hub [1] - The project aims to optimize the national highway network's north-south traffic capacity, significantly enhancing the overall traffic capacity and efficiency of the Jingtai Expressway in Shandong [1] Group 2: Design and Features - The project features an innovative composite cross-section design that combines a 12-lane overall design at the start and end points with a separated section for 8 lanes, including pre-diversion ramps to reduce vehicle weaving [1] - Emergency rescue channels have been constructed to ensure support for cross-road emergency responses, and a three-dimensional composite interchange at the Huaiyin Hub has been built to improve traffic efficiency and driving experience [1] Group 3: Smart Construction - The project has developed a BIM collaborative management platform for full-process online management and visualization from construction to acceptance and payment [2] - It focuses on three main areas: green coordinated development across the Yellow River, safe construction of the Yellow River super bridge, and intelligent traffic safety management for multi-lane operations, resulting in a series of patents and construction methods [2]