22号线河北段完成桥梁下部结构施工

Core Points - The construction of the Beijing Subway Line 22's Hebei section has reached significant milestones, with 70% of the main structure and 80% of the station structure completed [1][2] - The project, undertaken by China Communications First Highway Engineering Group, spans approximately 30 kilometers, with about 8 kilometers of bridge engineering, facing complex construction environments and technical challenges [1] - The line will enhance rapid connectivity between key areas in Beijing and Hebei, significantly improving commuting efficiency and promoting coordinated development in the Beijing-Tianjin-Hebei region [2] Summary by Sections Construction Progress - The final steel cover beam support stone has been poured, marking the completion of the bridge's substructure construction for the Hebei section of Line 22 [1] - The project has successfully overcome challenges related to complex geological conditions and sensitive surrounding environments through innovative technology and scientific management [1] Project Specifications - The total length of the Beijing Subway Line 22 is approximately 81.82 kilometers, connecting major functional areas such as Beijing's business center, urban sub-center, and key districts in Hebei [1][2] - The line will facilitate rapid transit, with travel times from Langfang's northern three counties to Beijing's urban sub-center reduced to as little as 9 minutes, and to the CBD in about 32 minutes [2] Strategic Importance - The completion of Line 22 is expected to significantly enhance the efficiency of commuter travel and is seen as a key project for the high-quality development of the "Railway on the Beijing-Tianjin-Hebei" initiative [2]