高速铁路建设

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包银高铁包惠段启动联调联试 计划年内开通运营
Nei Meng Gu Ri Bao· 2025-08-05 02:20
Group 1 - The Baoyin High-speed Railway's Baohui section has entered a critical phase of engineering acceptance with the launch of joint debugging and testing [1][2] - The line will utilize various testing equipment to conduct comprehensive tests on high-speed rail systems, ensuring operational readiness [1] - The Baoyin High-speed Railway is a key part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, significantly improving connectivity in the northwest region [2] Group 2 - The total length of the Baoyin High-speed Railway's Baohui section is approximately 420 kilometers, with a design speed of 250 kilometers per hour [2] - The railway will reduce travel time from Baotou to Yinchuan from 6 hours to under 3 hours, enhancing the efficiency of transportation in the region [2] - The completion of the Baoyin High-speed Railway will facilitate rapid passenger travel and strengthen economic ties between northwest and north China, promoting high-quality socio-economic development [2]
西十高铁全线隧道顺利贯通
Zhong Guo Xin Wen Wang· 2025-07-30 21:31
Core Viewpoint - The successful completion of the Hujia Yuan Tunnel marks the full breakthrough of all 42 tunnels of the Xishi High-speed Railway, laying the foundation for the comprehensive construction of ballastless tracks and the operation of the line [1][2] Group 1: Project Overview - The Xishi High-speed Railway has a total length of 255.7 kilometers, with the Shaanxi section measuring 169.4 kilometers and the Hubei section measuring 86.3 kilometers [1] - The Hubei section includes 26.5 tunnels, with a total length of 77 kilometers, accounting for 89% of the section [1] Group 2: Tunnel Details - The Hujia Yuan Tunnel, located in the Yuxi County of Shiyan City, is 4,456 meters long and has a maximum burial depth of approximately 200 meters [1] - It is the last tunnel to be completed in the Hubei section and is considered a key project due to its complex geological conditions, including the crossing of three fault zones and a high proportion (84.4%) of grade IV and V surrounding rock [1] Group 3: Construction Challenges and Solutions - The construction faced significant challenges such as high groundwater content and unstable geological conditions, with over 30% of the tunnel located in soft rock areas prone to deformation [1] - The construction unit adhered to principles of safety, quality, speed, environmental protection, and cost-effectiveness, employing advanced support measures like pre-injection grouting to ensure stability and control risks [2] - The use of GIS visualization platforms enhanced process management and allowed for dynamic adjustments to support parameters and excavation methods, ensuring safety during construction [2] Group 4: Strategic Importance - The Xishi High-speed Railway is a crucial component of the national railway network planning and the "13th Five-Year" development plan, designed for a speed of 350 kilometers per hour [2] - Once completed, it will enhance connectivity between the Guanzhong urban agglomeration and the Yangtze River midstream urban agglomeration, promoting socio-economic development along the route [2]
成渝中线高铁新进展!将实现时速400公里运营
Zhong Guo Chan Ye Jing Ji Xin Xi Wang· 2025-07-27 22:23
Group 1 - The Chengyu Middle Line High-Speed Railway will operate at a speed of 400 km/h, reducing travel time between Chengdu and Chongqing to 50 minutes upon completion [1] - The railway is a key part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, with a total length of 292 kilometers and a design speed of 350 km/h [2][3] - The railway will connect with several existing and under-construction high-speed rail lines, enhancing the transportation network in the Chengdu-Chongqing area and supporting the development of the Chengdu-Chongqing economic circle [3] Group 2 - The CR450 high-speed train is expected to be the core technology supporting the 400 km/h speed target, with ongoing technological innovations and infrastructure verification [4] - The CR450 train has achieved international leadership in key performance indicators such as operational speed, energy consumption, noise levels, and braking distance, promising a better travel experience [4] - The CR450 train has completed various stages of development, including prototype testing and performance validation, in preparation for trial operations [4][5]