Core Points - The G325 Guangnan Line Qinjiang Bridge of the Pinglu Canal successfully completed the arch rib closure on May 22, laying a solid foundation for subsequent construction activities [1][3]. Group 1: Project Overview - The bridge spans a total length of 397.04 meters, with the main bridge measuring 300 meters and a total width of 28.5 meters. The main arch employs a steel pipe concrete truss structure [3]. - The bridge consists of 36 arch rib segments, utilizing vertical assembly, asymmetric rotation closure, and bracket assembly methods for construction, with the maximum lifting weight reaching approximately 166 tons [3]. Group 2: Construction Management - The construction management team, comprising Pinglu Canal Group, Yellow River Survey and Planning Design Institute, Guizhou Lutong Engineering Management Consulting, and China Railway Shanghai Engineering Group, opted for a vertical assembly followed by clockwise vertical rotation method for construction [3]. - A specialized plan for processing and installation was developed to ensure smooth construction, addressing challenges posed by navigation, hub, and water conservancy engineering intersections [5]. Group 3: Safety and Innovation - The management team collaborated with meteorological departments for real-time monitoring and early warning of severe weather, implementing wind reinforcement for temporary facilities and formulating emergency plans for extreme weather to ensure safety [5]. - Innovative deformation coupling assembly methods were employed to achieve millimeter-level precision in installation, ensuring high accuracy and control of the arch rib's vertical assembly [5]. - The use of 4D point cloud laser scanning technology, combined with a synchronous hydraulic control system and an independently developed automatic detection control platform, facilitated intelligent rotation operations of the arch ribs, achieving synchronized and precise lowering of different trajectories [5].