黄百铁路最长桥梁进入连续梁施工阶段

Core Viewpoint - The construction of the longest bridge on the Huangbai Railway, the Lianzhuan No. 1 Bridge, has entered the continuous beam construction phase, marking a significant advancement in the project [1][4]. Group 1: Project Progress - The Lianzhuan No. 1 Bridge spans 4,766.83 meters, making it the longest bridge on the Huangbai Railway, which is approximately 315 kilometers long with a designed speed of 160 km/h [3][4]. - As of now, 13 out of 21 continuous beams designed for the bridge have entered the construction phase, accounting for over 60% of the total [4]. - The construction of 33 new tunnels along the Huangbai Railway has seen 7 tunnels safely completed, with the overall progress of tunnel, bridge, and roadbed works at 45.6%, 50.7%, and 43.6% respectively [4]. Group 2: Construction Techniques - The construction employs a continuous beam design to avoid setting bridge piers in river areas, thus protecting water resources [3][4]. - The use of a support cast-in-place method for the continuous beams eliminates the need for large lifting equipment, addressing challenges related to material transport and saving approximately 2 months in construction time compared to traditional methods [3][4]. Group 3: Economic and Regional Impact - The Huangbai Railway is a key project for the Western Land-Sea New Corridor, expected to enhance regional transportation networks and promote coordinated economic and social development in the area upon its completion in 2028 [4].