新渝万高铁

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新渝万高铁蔡家沟双线特大桥主跨合龙
Zhong Guo Xin Wen Wang· 2025-09-01 09:52
Core Viewpoint - The successful completion of the main span of the Caijia Gorge Double-Line Bridge marks a significant milestone for the Chongqing-Wanzhou High-Speed Railway, ensuring the project remains on schedule for timely operation [1][2]. Group 1: Project Overview - The Chongqing-Wanzhou High-Speed Railway is part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, connecting Chongqing East Station to Wanzhou North Station over a total length of 251 kilometers with a design speed of 350 kilometers per hour [2]. - The Caijia Gorge Double-Line Bridge, located in Fuling District, spans approximately 2,113 meters and is considered a critical and challenging engineering component of the railway [2]. Group 2: Construction Challenges - The bridge construction faced numerous challenges due to its location in a hilly valley area, which included risks such as falling rocks, landslides, and adverse geological conditions [2]. - The project team successfully addressed various construction difficulties, including precision control for high pier construction and temperature management for large-volume concrete, while introducing new technologies and methods to facilitate progress [2]. Group 3: Economic Impact - Once operational, the Chongqing-Wanzhou High-Speed Railway is expected to significantly enhance connectivity between the urban areas of Northeast Chongqing and the main urban area, greatly benefiting local residents and promoting economic and social development along the route [4].
新渝万高铁新桥双线特大桥顺利合龙
Zhong Guo Xin Wen Wang· 2025-08-13 10:30
Core Points - The new Chongqing to Wanzhou high-speed railway (referred to as "New Yuwan High-speed Railway") has successfully completed the main bridge's connection, laying a solid foundation for the timely operation of the entire line [1][2] - The New Yuwan High-speed Railway is part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, connecting key regions and enhancing transportation efficiency [2] Summary by Sections Project Overview - The New Yuwan High-speed Railway features a total length of 251 kilometers and a design speed of 350 kilometers per hour, starting from Chongqing East Station and connecting to Wanzhou North Station [2] - The newly constructed double-line bridge spans 1,848 meters and is located in the Fuling District of Chongqing, with a maximum pier height of 100 meters [2] Construction Techniques - The bridge construction utilized a method that involved breaking down 64-meter simple beams into 17 segments of approximately 4 meters each, employing a factory-prefabrication approach for enhanced safety and simplicity compared to traditional methods [2] Economic Impact - The completion of the New Yuwan High-speed Railway is expected to facilitate convenient connections between the northeastern Sichuan Three Gorges Reservoir area and the main urban area of Chongqing, significantly benefiting local residents and promoting economic and social development along the route [2]
新渝万高铁任家山隧道顺利贯通
news flash· 2025-05-08 03:51
Core Viewpoint - The completion of the Renjiashan Tunnel marks a significant milestone in the construction of the Chongqing-Wanzhou High-Speed Railway, indicating the project is entering a critical phase of tunnel construction [1] Summary by Relevant Sections Project Details - The Renjiashan Tunnel is located in Zhong County, Chongqing, and is a single-tube double-track tunnel with a design speed of 350 km/h and a total length of 4,010 meters [1] - The maximum burial depth of the tunnel is 146 meters, situated in a hilly terrain with significant elevation changes [1] Economic and Social Impact - The Chongqing-Wanzhou High-Speed Railway has a total length of 251 kilometers and a design speed of 350 km/h [1] - Once operational, the railway will enhance connectivity between the urban areas of the Northeast Sichuan Three Gorges Reservoir region and the main urban area, greatly facilitating travel for local residents [1] - The project is expected to promote economic and social development along the railway line and support the implementation of the Chengdu-Chongqing Economic Circle strategy, as well as the integration of the "Belt and Road" initiative with the Yangtze River Economic Belt [1]