大吨位“高铁跨高铁” 河南平漯周高铁近万吨“巨梁”成功转体

Core Points - The successful rotation of a nearly 10,000-ton "giant beam" for the Pingluozhou high-speed railway marks a significant milestone in the construction process, laying the groundwork for subsequent bridge installations and the overall completion of the line [1][2]. Group 1: Project Overview - The Pingluozhou high-speed railway is a crucial part of the national railway network, stretching nearly 200 kilometers from the western end at Pingdingshan West Station to the eastern end at Zhoukou East Station [2]. - The project features the first "no-edge span" design bridge in Henan Province, with a key segment measuring 161.5 meters in length and weighing approximately 9,925 tons, making it a landmark achievement in high-speed railway construction [2][3]. Group 2: Construction Techniques - To address the challenges of crossing operational high-speed rail lines, the construction team innovatively poured the main bridge structure along the side of the Zheng-Fu high-speed railway and utilized "window" work periods to rotate the bridge into position, ensuring simultaneous progress in both high-speed rail operation and construction [2][3]. - The design was optimized to eliminate conventional cast-in-place edge spans, reducing interference with the Zheng-Fu high-speed railway and saving over 180 days of construction time [3]. Group 3: Safety and Monitoring - Advanced construction methods, including the use of an overall support frame and Building Information Modeling (BIM) for simulation, were employed to identify potential risks and ensure safety [3]. - The site was equipped with 360-degree monitoring devices to track critical data such as rotation angle, speed, position, and minor deformations, allowing for precise adjustments during the bridge's rotation [3]. Group 4: Economic and Regional Impact - Upon completion, the Pingluozhou high-speed railway will serve as a convenient link connecting major north-south rail arteries, facilitating both long-distance transport and local commuter services, thereby enhancing regional economic development [3].