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沈海高速改扩建上跨胶济、胶新铁路立交桥完成转体
Feng Huang Wang Cai Jing· 2025-11-13 15:58
Core Points - The successful completion of the bridge rotation in the Shenhail Highway expansion project marks a significant milestone, overcoming a critical construction challenge [1][2] - The Shenhail Highway, spanning 359.079 kilometers in Shandong Province, is being upgraded to a dual eight-lane highway with a design speed of 120 km/h [1] - The bridge, measuring 275 meters in length and weighing 5,286 tons, is the largest of its kind in Shandong Province, utilizing weathering steel to enhance durability and reduce maintenance costs [1][2] Construction Techniques - Advanced technologies such as hole detection instruments and electronic curtain wall systems were employed to ensure construction safety and precision [2] - The project team utilized smart construction techniques to accurately calculate traction and safety coefficients, establishing a dynamic correction model for the bridge rotation [2] - Real-time monitoring was achieved through high-precision total stations and electronic leveling instruments, ensuring millimeter-level precision during the rotation process [2] Strategic Importance - The Shenhail Highway expansion project connects several strategic development areas, including the Linyi Economic Zone and the Qingdao Free Trade Zone, and links to major transportation hubs like the Jiaodong International Airport [2] - Upon completion, the project is expected to enhance regional transportation service levels, optimize road network structure, and promote economic integration in the Jiaodong Economic Circle [2]