At 11:05 p.m. on September 27, the Sanmao Railway Overpass Bridge of the Yunzhan Expressway project undertaken by the Fifth Company of China Railway 11th Bureau successfully crossed the Guangmao Railway, marking a substantive victory in the project's construction. The crossing of the railway by the Sanmao Railway Overpass Bridge is construction on an operating line, where construction protection is the key focus and safety hazards exist. Maintenance windows and construction windows must be reasonably utilized to minimize the impact on the operation of the existing operating line. At the same time, during the process of crossing the railway, personnel from units such as the Guangdong Railway Bureau and the Guangzhou Railway Group must cooperate to ensure the safety of construction on the operating line.

　　Pre-job safety education and training for workers before the crossing construction of the Sanmao Railway Overpass Bridge

　　To complete this construction task, the project department formulated a thorough plan and made adequate preparations. For half a year in advance, it continuously strengthened education and training, conducting targeted training in batches for each work group, safety protection personnel, and construction workers, refining responsibilities, and memorizing precautions for girder erection involving the railway; it organized all departments of the project to conduct a major safety inspection, comprehensively inspected and maintained girder erection equipment and machinery and power lines, prepared generators, and ensured a second line of defense; to ensure that the crossing girder erection construction was foolproof, the project department selected experienced construction personnel and simulated girder erection at night, allowing workers to become familiar with the working environment and procedures and ensuring safe, efficient, and high-quality completion of the construction task.

　　Working through the night on the crossing construction of the Sanmao Railway Overpass Bridge

　　The Sanmao Railway Overpass Bridge of the Yunzhan Expressway project undertaken by the Fifth Company of China Railway 11th Bureau has a total length of 1095.6 m, and the ground elevation in the bridge area is about 88–72 m. The bridge was built to cross the Guangmao Railway and is the only extra-large bridge on the entire Yunzhan Expressway. During construction, the project adhered to the concept of "standardized management and benchmark management," strengthened process control, let process control the process and let the process control the whole, and strived to build a quality bridge. They established a quality reward and penalty system for the project to continuously motivate and improve the professional level of management personnel; they focused on monitoring processes such as bridge pile foundations, piers, abutments, bent caps, box girder prefabrication, and bridge deck systems, and increased quality and safety supervision and control through various methods such as centralized material procurement and centralized processing of steel reinforcement components.

　　The crossing construction task of the Sanmao Railway Overpass Bridge was successfully completed

　　From September 25 to September 27, after three days of night work by all personnel, the crossing construction task of the Sanmao Railway Overpass Bridge of the Yunzhan Expressway project undertaken by the Fifth Company of China Railway 11th Bureau was safely and smoothly completed, and was highly praised by the owner and relevant leaders of the Guangzhou Railway Group.