Core Points - The completion of the railway bridge repair project on the Jing-Tong Railway is crucial for enhancing safety and operational efficiency [1][2] - The project involved a 19-day shutdown for the replacement of damaged beams, impacting 14 bridges and 428 beam replacements [1] - The successful execution of the project is expected to facilitate the electrification of the Jing-Tong Railway and improve its transportation capacity [2] Group 1 - The Jing-Tong Railway, built in the 1970s, has faced significant bridge damage affecting safety and efficiency [1] - The repair project utilized a comprehensive approach, including a shutdown and the replacement of damaged beams, with careful planning and coordination by the Shenyang Bureau of China Railway [1][2] - The project involved advanced construction techniques, including the use of bridge cranes and large cranes to ensure efficient beam replacement under challenging conditions [2] Group 2 - The project was organized into four construction sections and seven work fronts to maximize efficiency within the limited timeframe [2] - The successful completion of the bridge repair is expected to eliminate safety hazards and enhance the overall service quality of the Jing-Tong Railway [2] - The project is significant for supporting economic and social development by ensuring safer and more efficient railway operations [2]

Core Points - The completion of the railway bridge repair project on the Jing-Tong Railway is significant for enhancing the electrification and transportation capacity of the railway, eliminating safety hazards, and ensuring safe train operations [2] Group 1 - The Jing-Tong Railway, operational since 1979, faced severe bridge damage issues affecting safety and efficiency due to construction conditions and techniques [1] - The repair project involved a 19-day complete closure of the railway line, replacing damaged beams across 14 bridges, with a total of 428 beam replacements [1] - The project utilized advanced construction techniques, including a combination of bridge machines and large cranes, to efficiently replace 64 beam bodies and handle complex conditions for 29 beams [1]