On September 27, the world's largest pile-driving vessel, "Tiejian Dajiao Zhuang No. 1," invested in and built by China Railway Construction Bridge Engineering Bureau Group, departed from the foreign trade terminal at Lüsi Port in Jiangsu for Brazil to take part in the construction of the Salvador Sea Crossing Bridge.

　　According to a relevant person in charge at China Railway Construction Bridge Engineering Bureau Group, before departure, both the vessel and shore sides completed the preparation of a special plan, route survey, and risk assessment. As planned, the vessel will pass through the Strait of Malacca and the Cape of Good Hope into the SouthAtlanticand arrive in the waters off Recife on the northeastern coast of Brazil, covering a voyage of 11,300 nautical miles and expected to take 45 days.

　　The Salvador Sea Crossing Bridge spans the Bay of All Saints in Brazil. The water depth at the main bridge pile foundation construction site is 64 meters, and the marine geological conditions are complex. "Tiejian Dajiao Zhuang No. 1" has an overall length of 130.5 meters, an operating water depth of up to 70 meters, a pile frame height of 156 meters, and a pile-lifting capacity of 700 tons. It is currently the pile-driving vessel with the highest pile frame, the largest pile-lifting capacity, and the deepest operating water depth in the world, and can overcome the operational bottlenecks of traditional pile-driving equipment in deep and distant seas and complex sea conditions, such as being "unable to reach, unable to drive accurately, and unable to remain stable."

　　The Salvador Sea Crossing Bridge has a main span of 682 meters and a total length of 46.8 kilometers.

Source: Xinhua News Agency