Core Points - The Yanzhou North Station expansion and renovation project, undertaken by China Railway 10th Bureau, has successfully completed the phase of traction power supply equipment modification after four consecutive shutdowns, accelerating the overall project progress [1][3]. Group 1: Project Overview - The expansion will restructure the station layout and enhance overall cargo transportation efficiency, including the construction of two new station yards and the renovation of four existing ones, along with the overall renovation of Baijiadian Station and the addition of a freight connection line between the two stations [3][9]. - The project is divided into two phases and is located in a busy railway corridor with high traffic density, requiring precise and complex construction techniques [5]. Group 2: Construction Details - The renovation involved a complete power shutdown at the Yanzhou North traction substation, affecting seven stations and nine sections, which impacted the transportation organization of the busy Beijing-Shanghai and Heze-Yanzhou railways [7]. - During the four shutdowns, over 660 workers and more than 90 management personnel were organized, utilizing three sets of track cranes and six large-tonnage truck cranes to efficiently complete the modification tasks within a two-hour daily window [7]. Group 3: Strategic Importance - As a core railway freight hub in southwestern Shandong, Yanzhou North Station plays a crucial role in connecting East China and North China, as well as radiating to the Central Plains and coastal areas [9]. - The completion of the expansion will alleviate transportation pressure on major railways such as the Beijing-Shanghai and Xinshiyuan railways, enhancing network efficiency and supporting the "Belt and Road" initiative while stimulating regional economic activity [9].