包银高铁银巴支线贺兰山隧道

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穿越贺兰山铁路隧道贯通
Ren Min Ri Bao· 2025-08-16 21:36
Core Points - The successful completion of the Helan Mountain Tunnel marks a significant milestone for the Baoyin High-speed Railway's Yinba branch, which is part of China's "eight vertical and eight horizontal" high-speed rail network [1] - The Yinba branch spans approximately 111 kilometers, connecting Yinchuan in Ningxia to Alashan League in Inner Mongolia, with the Helan Mountain Tunnel being a critical engineering challenge [1] Summary by Sections - **Tunnel Specifications**: The Helan Mountain Tunnel is 8,792 meters long, located at the border of Alashan League and Yinchuan, and crosses a sensitive ecological area with complex geological conditions. The maximum burial depth exceeds 230 meters, and the construction faced high risks of water intrusion and collapse [1] - **Construction Techniques**: To minimize disturbance to the Ming Great Wall, the construction team employed a low-disturbance combination technique of "mechanical excavation + C6 drilling machine operation + dynamic monitoring," ensuring high-quality and efficient tunneling while protecting ancient heritage sites [1] - **Economic Impact**: Once operational, the Baoyin High-speed Railway's Yinba branch will enhance the railway network layout between Ningxia and Inner Mongolia, improve regional connectivity, and promote coordinated economic development along the route, injecting new momentum into high-quality regional economic and social development [1]
中国首条穿越贺兰山铁路隧道贯通
Zhong Guo Xin Wen Wang· 2025-08-16 14:53
Core Viewpoint - The completion of the Helan Mountain Tunnel marks a significant milestone for the Baoyin High-speed Railway's Yinba branch, enhancing the railway network in the Ningxia and Inner Mongolia regions and promoting regional economic development [1] Group 1: Project Details - The Helan Mountain Tunnel is a critical engineering project located at the border of Alxa Left Banner in Inner Mongolia and Yinchuan in Ningxia, characterized by complex geological conditions and a sensitive ecological environment [1] - The total length of the Baoyin High-speed Railway's Yinba branch is approximately 111 kilometers, connecting Yinchuan City in Ningxia to Bayanhot Town in Alxa League, Inner Mongolia [1] Group 2: Construction Techniques - The construction team utilized advanced techniques including "mechanical excavation + C6 drilling machine operation + dynamic monitoring" to ensure high-quality and efficient tunneling [1] Group 3: Economic Impact - The completion of this railway project is expected to improve the railway network layout within Ningxia and Inner Mongolia, playing a vital role in promoting high-quality economic and social development in the region [1]
包银高铁银巴支线贺兰山隧道贯通
Xin Hua She· 2025-08-16 07:23
Core Viewpoint - The successful completion of the Helan Mountain Tunnel marks a significant milestone in the construction of the Baoyin High-speed Railway, which is a crucial part of China's national high-speed rail network [1] Group 1: Project Overview - The Helan Mountain Tunnel, constructed by China Railway Fifteenth Bureau, has a total length of 8,792 meters and is located at the boundary between Alxa Left Banner in Inner Mongolia and Yinchuan in Ningxia [1] - The tunnel's geological conditions are extremely complex, with a maximum burial depth exceeding 230 meters, and it requires passing under six fractured zones and the Ming Great Wall, categorizing it as a Class I high-risk tunnel [1] Group 2: Construction Techniques - To minimize disturbance to the Ming Great Wall, the construction team upgraded traditional blasting methods to a low-disturbance combination technique involving "mechanical excavation + C6 drilling machine operation + dynamic monitoring," ensuring high-quality and efficient tunneling [1] Group 3: Strategic Importance - The Baoyin High-speed Railway is an important component of the national "Eight Horizontal and Eight Vertical" high-speed rail network, with the Yinba branch line starting in Yinchuan and ending in Bayannur, Inner Mongolia [1] - The Helan Mountain Tunnel is identified as a critical and challenging control project within this branch line [1]