China News Service, Xi'an, March 18 (Zhang Yuan, Hu Miaomiao, Zhou Xuan) On the 17th, in front of the station of the new Xi'an to Shiyan high-speed railway (Shaanxi section) constructed by Xicheng Railway Passenger Dedicated Line Shaanxi Co., Ltd. and China Railway Seventh Bureau Group Co., Ltd. The XSZQ-3 bid section of the project is advancing rapidly. Among them, the cumulative excavation of the Class I high-risk tunnel, the Xiling Tunnel, has exceeded 9,092.5 meters, ushering in the important node of more than half of the excavation, laying a solid foundation for subsequent tunnel penetration.
The picture shows construction workers at the excavation working surface of the China Railway Seventh Bureau West Ten High-speed Railway Project excavation and drilling.
Photo by Hu Miaomiao
The XSZQ-3 bid section of the new Xi'an to Shiyan high-speed railway (Shaanxi section) station front project has a total length of 20.26 kilometers, with 2 tunnels, 1 bridge and 1 roadbed.
Among them, the Xiling Tunnel is a key control project along the entire line, with a total length of 18,082 meters. It is a dual-line, dual-cavity Class I high-risk tunnel. There are risks and hidden dangers such as micro-gas overflow, karst, swelling rock, large deformation of soft rock, and inverted arch uplift. .
The overall construction geology of the tunnel is complex, with frequent cross-cutting operations, high ventilation and drainage technical requirements, and difficult management.
Xicheng Railway Passenger Dedicated Line Shaanxi Co., Ltd. is the management unit of Shaanxi high-speed rail construction. At the beginning of the year, Xicheng Dedicated Passenger Dedicated Line Shaanxi Company called on all parties involved in the construction to work hard to play a decisive role in the construction of Shaanxi's "meter"-shaped high-speed rail network at the 2024 railway construction work conference. During the battle, specific requirements were put forward for each participating unit.
Since the start of construction, China Railway No. 7 Bureau has anchored the construction goals and requirements of Shaanxi Company of Xicheng Passenger Line on creating high-quality, innovative, green, and clean projects, insisting on creating high-quality projects through standardized construction, strictly implementing grid management, and ensuring safety at all levels. Responsibility: During construction in the expansive rock section, advanced automatic invert monitoring equipment was used to monitor the invert construction, and a 3D laser scanner was used to scan the primary branch section to ensure construction quality and safety.
The West 10th High-Speed Railway adheres to the construction concept of "meticulous organization, precise management, precise construction, exquisite craftsmanship, and exquisite quality", and strives to achieve comprehensive excellence and excellent internal and external quality, and achieve "high-quality, green, intelligent, and humanistic" "The construction goal of quality projects.
It is understood that after the West-Shi High-speed Railway is completed and opened to traffic, it will be possible to arrive from Xi'an to Shiyan within one hour, and the train running time from Wuhan to Xi'an is expected to be shortened to 2.5 hours. It will strengthen the connection between the Guanzhong Plain urban agglomeration and the middle reaches of the Yangtze River, and promote the economic and social development along the line. It is of great significance to develop and improve the layout of the national high-speed railway network.
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