Real dedication strives for an early spring, and the dragon's roar hastens each new day. On the 18th, the reporter learned that all builders of the Project Department of the No. 3 Work Area of the Yongzhou Railway of China Railway 11th Bureau made a one-touch switch, shifting from the Spring Festival "holiday mode" to the "intensive construction mode." On the eighth day of the first lunar month, all project personnel were already at their posts, and on the tenth day of the first lunar month the Project Department fully resumed work and production, taking as its main line the Jintang Subsea Tunnel—the world's longest and largest-diameter subsea high-speed railway tunnel—and making every effort to ensure the shield machine launches on schedule.

Welding the shield machine cutterhead

The construction site is a busy scene, setting off a new upsurge of construction. The mixing station and segment factory are in production, and the exit of the Jintang Subsea Tunnel and the No. 2 inclined shaft are preparing for tunnel invert construction. The super-large-diameter shield machine "Dinghai" rolled off the production line in Changsha on January 10 and is being disassembled and shipped across the sea to Zhoushan in succession; disassembly is scheduled to be completed in March, with all transport to the site completed in April. The working shaft of the Jintang Subsea Tunnel already provided the conditions for lowering the shield machine into the shaft before the New Year, and at present the cutterhead welding and assembly and the trolley assembly of the "Dinghai" shield machine are underway.

In order to ensure rapid and effective resumption of production, before the Spring Festival holiday the Project Department stockpiled the resource elements needed to restore construction and production, such as personnel, materials and equipment, and formulated a specific plan for resuming work and production. Before the Spring Festival holiday, the project completed the statistics on ticket purchases for personnel returning home, ensuring that personnel were at their posts in time after the Spring Festival. On the seventh day of the first lunar month, a special meeting on post-holiday safety education to refocus personnel was organized for those who had returned to their posts, and a meeting on work deployment for safe production and resumption of work and production was held to coordinate and resolve various issues constraining the resumption of work and production.

Post-holiday inspection of the crawler crane

At the same time, the Project Department strictly implemented the acceptance procedures for the safety conditions for resuming work, organized personnel to conscientiously carry out safety inspections before resuming work, conducted comprehensive safety screening of incoming machinery, equipment, scaffolding, construction access roads, etc., and solidly carried out "three-level" safety education, technical disclosure, and investigation and rectification of hidden dangers.

It is reported that 2024 is a crucial year for the engineering project, as the project will officially begin the shield launching and tunneling of the world's longest and largest-diameter subsea high-speed railway tunnel. In 2024 the project will add 5 work sites: the Jintang Subsea Tunnel, the Beichuan'ao Tunnel, the subgrade section of Jintang Station, the Wangjia'ao Bridge, and the Mu'ao Grand Bridge, with 7 work sites operating at the same time.

The newly built Yongzhou Railway project is one of the ten landmark projects for the construction of major corridors in Zhejiang Province, with a total length of about 76.4 kilometers. The line starts at Ningbo East Station in the west and extends eastward to Zhoushan City, Jintang Island, Cezi Island, and Zhoushan Main Island. The shield-driven section of the Jintang Subsea Tunnel has a total length of about 11.27 kilometers, and China Railway 11th Bureau undertakes the 6.27-kilometer construction task on the Zhoushan side.

Resumption of production at the segment factory

After the project opens to traffic, it will have far-reaching significance for Zhoushan City to actively integrate into national strategies such as the joint construction of the "Belt and Road," the development of the Yangtze River Economic Belt, and the integrated development of the Yangtze River Delta, to effectively promote the integrated development of Ningbo and Zhoushan, and to accelerate the building of the Ningbo metropolitan area.