龙烟铁路市域化改造新突破！全线最大跨径连续梁顺利合龙

Group 1 - The Dragon-Yan Railway urbanization renovation project has successfully completed the pouring of the largest 112-meter continuous beam, marking a significant milestone in the construction process and ensuring the project's timely completion [1] - The project spans a total length of 46.6 kilometers, with the section undertaken by China Railway Fourth Bureau covering 34.6 kilometers, including various engineering components such as subgrade, bridges, tunnels, and track laying [1] - The 112-meter continuous beam is a critical component of the project, directly influencing the structural safety, load stability, and alignment of the bridge, which is essential for the efficient advancement of subsequent construction phases [1] Group 2 - The construction team has implemented specialized winter construction plans to address challenges posed by low temperatures, ensuring high-quality progress during winter [2] - Measures include building fully enclosed insulated greenhouses for the pouring area, using high-power heaters and steam curing equipment to maintain suitable curing conditions, and monitoring temperatures to ensure compliance [2] - The project team has also focused on controlling the moisture content and temperature of aggregates and concrete, enhancing the freeze resistance of the concrete from the source [2] Group 3 - Upon completion, the Dragon-Yan Railway will provide a rapid public transport artery across Yantai, significantly improving connectivity to the airport and ferry terminals, with a direct travel time from Yantai Station to the airport expected to be around 25 minutes [3] - The line will stop at 10 stations, with an estimated total travel time of approximately 45 minutes, contributing to an efficient urban transportation system and alleviating traffic pressure during adverse weather conditions [3] - The project is expected to play a vital role in enhancing the regional transportation network and promoting high-quality economic and social development in Yantai [3]