In the early hours of March 6, at the construction site of the Tongtaiyang Super Major Bridge along the Shanghai-Nanjing-Hefei High-Speed Railway (referred to as the Huninghe HSR) crossing over the Lianzhen Passenger Dedicated Line, undertaken by China Railway Construction Bridge Engineering Bureau Group Co., Ltd., a 208-metric-ton steel crossbeam was precisely embedded into the pier support. This marked the successful completion of the first steel crossbeam hoisting over the Lianhuaizhenzhen Railway along the North Yangtze River High-Speed Railway, laying a solid foundation for subsequent girder erection and ballastless track construction.
According to reports, the Tongtaiyang Super Major Bridge on the Huninghe HSR (Yangzhou section) features four steel crossbeams crossing the Lianhuaizhenzhen Railway. The first hoisted crossbeam measured 35.28 meters in length, 3.48 meters in width, and 3.4 meters in height, weighing 208 metric tons and lifted by a 600-ton crawler crane. The operation was a race against time, requiring the construction team to complete the hoisting within 120 minutes. With a minimal clearance of just 1 meter between the crossbeam's base and existing catenary lines, and alignment precision mandated within 5 millimeters, the operation posed extreme technical challenges and safety risks.
To ensure precision, the project team conducted multiple specialized seminars to optimize the hoisting plan, performed repeated 3D modeling simulations, implemented strict measurement verification, and conducted trial hoisting drills. Three key measures were adopted: 1) Pre-operation inspections of intelligent hoisting systems, rigging, foundation bearing capacity, and crane performance; 2) Comprehensive safety briefings and professional training for personnel; 3) Establishment of an on-site temporary command center for full-process monitoring. With coordinated efforts from construction, supervision, design units, and railway management departments, the milestone operation was successfully accomplished.
As a vital component of the national "Eight Vertical and Eight Horizontal High-Speed Rail Corridors" plan, the Huninghe HSR serves as a backbone route combining intercity functions with mainline network operations. Upon completion, it will become a critical passenger corridor for Yangtze River regional traffic and partial coastal/Beijing-Shanghai corridor flows, significantly optimizing the Yangtze River Delta's rail network and driving integrated regional development.
Media Contact
Company Name: China Railway Construction Bridge Engineering Bureau Group Co.,Ltd.
Contact Person: Li Bing, Zhang Xiaoqian
Email: Send Email
Country: China
Website: http://cr13g.crcc.cn/
