en.Wedoany.com Reported - At 16:30 on May 27, the capacity expansion and renovation project at Yanzhou North Station, constructed by China Railway Jinan Bureau Group and undertaken by China Railway No.10 Engineering Group, successfully completed tasks including the renovation of 6 yards, the commissioning of a newly built hump yard, and the replacement and upgrade of the signal control system, following a 450-minute Grade I railway signal major construction operation. With this, the largest rail freight hub in southwestern Shandong has undergone a magnificent transformation and is now operating at "full capacity."
The Yanzhou North railway hub connects North China, Central China, and East China, functioning like the "heart" of the southern Shandong transportation network and undertaking the busy task of train throughput. As regional freight volume continued to climb, the original yard's low space utilization efficiency and increasingly saturated transport capacity became key bottlenecks hindering the improvement of railway freight capacity.
This capacity expansion and renovation, lasting two years, involved systematic optimization and upgrading of the yard structures at Yanzhou North Station and Baijiadian Station. The project included the reconstruction of one arrival yard, the construction of one new marshalling yard, one new automated hump yard, and one new connecting line between Yanzhou North and Baijiadian. It also optimized and upgraded the power supply units for the existing Xinxi-Yanzhou Line and Baijiadian-Yanzhou Line. Consequently, the layout of the Yanzhou North Station's down direction system was changed from the original transversal arrangement to a highly efficient longitudinal arrangement, resolving the persistent problem of cross-interference between shunting operations and train receiving/departing operations.
Starting from May 7, within an extreme cycle of 14 track possession blocks over 20 days, construction workers cumulatively dismantled 69 existing sets of turnouts, inserted 31 sets, and laid 39 new sets, while simultaneously completing the signal interlocking linkage tests and catenary renovation, laying a solid foundation for this major construction operation.
The scope of this operation involved 8 stations (yards) and 6 train operation sections, with 9 major work fronts advancing simultaneously and six major disciplines including track, signaling, and power supply working concurrently on site. The core of the construction was the upgrade and replacement of the signal control system, a process requiring the dismantling and modification of 13,627 wires and the completion of interlocking tests, equivalent to reconnecting tens of thousands of "nerve fibers" for the hub's "brain." Any error in a single cable could lead to "command failure" of the entire system.
Operators strictly adhered to construction procedures, meticulously debugged equipment data, and successfully achieved the set goals of "zero wiring errors, thorough testing, and correct interlocking relationships." They smoothly completed tasks for system data compatibility and interoperability, as well as communication equipment debugging for the signal interlocking systems at three stations/depots, ensuring a seamless transition between the old and new systems.
The Yanzhou North railway hub connects multiple national railway trunk lines, including the Beijing-Shanghai, Xinxiang-Yanzhou, and Yanzhou-Shijiusuo lines. Following this large-scale upgrade, the hub's comprehensive capacity for train sorting, transit, and through passage has been significantly enhanced, completely clearing the "bottleneck" in rail freight at this hub. Simultaneously, it has fundamentally resolved the long-standing and difficult problem of maintenance challenges for the catenary equipment on the three lines at Yanzhou North Station.
After its magnificent transformation, the Yanzhou North hub will fully leverage its geographical advantage of connecting east and west, and linking north and south. It will closely link the massive freight volumes from the inland hinterland with the economically developed eastern provinces and coastal ports, continuously unleashing the advantages of high-volume, high-efficiency railway transportation. This will solidify the transportation foundation for the coordinated development of Shandong and surrounding regions and the quality improvement and upgrading of the local economy, injecting lasting momentum into the transformation and upgrading of the regional logistics industry and facilitating public travel.
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