The Yangtze River surges with tides, and Zhongshan Mountain stands majestic. At Nanjing North Railway Station—a super-hub construction site carrying the core mission of the Yangtze River Delta's "metropolitan area on rails"—an engineering chapter about deep foundations and speed is unfolding. A steel array of nearly 40 SANY rotary drilling rigs roars ceaselessly, with 16,000 deep piles piercing through rock strata. With the responsibility of a "national treasure of machinery," SANY piling rigs are pouring a solid foundation for this future hub.

As the largest hub passenger station on the northern Yangtze River corridor of China's "Eight Vertical and Eight Horizontal" high-speed railway network, Nanjing North Railway Station guards the golden crossroads where the Yangtze River corridor and the Guangdong-Hainan corridor intersect. The project has a total floor area of 692,100 square meters and is equipped with a track system of 3 yards, 16 platforms, and 30 lines. It is the only railway hub in Nanjing integrating high-speed rail, intercity rail, and conventional rail, and is also a key node project of the northern Yangtze River high-speed railway.

"SANY Legion" Leads the Charge：At the peak of the project, more than 80 rotary drilling rigs roared day and night, of which SANY rotary drilling rigs accounted for nearly half (40 units), forming the absolute main force.

Decoding the Data of the Underground Great Wall：

▶ Pile diameter 1–1.2 meters

▶ Pile depth 50–60 meters (about the height of a 20-story building)

▶ Total number of piles nearly 16,000. Breaking Through the Extreme Schedule: Facing the deadline for completion of the pile foundation by the end of April, SANY equipment, with its high availability rate, efficiently completed the project tasks.

Facing the gravel rock strata deposited by the ancient Yangtze River channel, SANY rotary drilling rigs' "rock penetration mode" greatly shortens the hole-forming time per pile compared with traditional equipment. At the same time, equipped with the SANY intelligent operating system, they monitor the verticality of the drill pipe in real time, with a hole verticality error of <1‰, perfectly meeting the "zero tolerance" requirements of high-speed railway stations.

Cluster Intelligence：Through the "SANY Easy Maintenance Cloud Platform," the operating status of 40 pieces of equipment is monitored in real time. Dozens of parameters such as fuel consumption, drilling depth, and working hours are visualized in the cloud, making it easier for owners to manage equipment and greatly improving construction efficiency.

As pile foundation construction progresses, the underground "skeleton" of Nanjing North Railway Station has taken shape. The 16,000 deep piles are like codes embedded in the earth, recording the mighty power of the SANY rotary drilling rig fleet penetrating rock and soil, and bearing witness to the hardcore strength of China's intelligent manufacturing in conquering super engineering projects. This "rail aircraft carrier," expected to be completed in 2027 with an annual passenger volume of 36 million, is growing steadily amid the roar of SANY rotary drilling rigs.