武重高速公路跨沪蓉铁路大桥双座同步转体成功

Core Points - The successful rotation of two T-shaped rigid beams marks a significant breakthrough in the construction of the Wuhan-Chongqing Expressway, specifically the Wuhan to Hanchuan section [1][2] - The project is crucial for enhancing the transportation network between the Yangtze River Economic Belt and the Chengdu-Chongqing economic circle, contributing to regional economic development [3] Group 1: Project Details - The Wuhan-Chongqing Expressway spans approximately 867 kilometers, with the Wuhan to Hanchuan section measuring about 53.159 kilometers [1] - The key control project, the cross-Hu-Rong Railway Bridge, features a total length of 150 meters and a width of 19.695 meters, designed as a double-separation style bridge [1] Group 2: Construction Techniques - The construction utilized an integrated "pre-fabrication and then rotation" method to minimize impact on the operational railway, which has trains passing every three minutes during peak hours [2] - The rotation of the beams required precise control of time, angle, and balance, with one beam rotating 90.4 degrees and the other 91.7 degrees [2] Group 3: Safety Measures - A comprehensive safety and quality assurance system was established, including the use of high-precision monitoring equipment to oversee the rotation process in real-time [2] - The project team conducted extensive simulations and tests to ensure the accuracy of the rotation angles and other critical parameters [2]