Latest! At 17:36 this afternoon, the construction of the pile foundation of the No. 5 main pier of the Taoyaomen Road and Railway Dual-purpose Bridge of Yongzhou Railway was completed, marking a key breakthrough in the construction of the substructure of the No. 5 main pier and laying a solid foundation for the subsequent transfer to the bearing platform construction.
The 76.4-kilometer-long Yongzhou Railway starts from Ningbo East Railway Station in the west, passes through Yinzhou District and Beilun District of Ningbo City, passes through the new Jintang Submarine Tunnel to Jintang Island in Zhoushan City, the new cross-sea bridge, and ends at Baiquan Town, Dinghai District, with 7 stations in Ningbo East, Yunlong, Qiu Pass, Beilun West, Jintang, Ma'ao and Zhoushan, with a design speed of 250 kilometers per hour, which is to build a "one-hour traffic circle" in Zhejiang Province and form a convenient passenger transport channel between the mainland and Zhoushan Island.
As one of the key projects of the Yongzhou Railway, the Taoyaomen Road and Railway Bridge has a total length of about 1,531 meters, of which the road and railway joint section is 1,066 meters long, connecting Zhangzi Island and Fufin Island. The main bridge adopts a mixed box girder cable-stayed bridge with a main span of 666 meters, which is the world's first three-box separated mixed girder cable-stayed bridge; The road and railway are arranged in a flat layer, the railway is a double-track design, arranged in the middle, with a design speed of 250 kilometers per hour, and the highway is a two-way 6-lane highway with a design speed of 100 kilometers per hour, which is the world's largest span road-rail dual-purpose hybrid beam cable-stayed bridge; The middle span main beam is made of separated steel box girder, and the side span main beam is made of concrete box girder, and the beam width is 66 meters, which is the world's largest width separated concrete box girder.
After the completion of the Yongzhou railway project, it will end the history of Zhoushan Islands without railways, and Zhoushan City, the only prefecture-level city in the Yangtze River Delta without high-speed rail, will join the national railway network, which is of great significance for improving the layout of the railway network, promoting the development of tourism along the line, realizing the integration and development of Ningbo-Zhoushan, and accelerating the deep integration of Zhoushan and Ningbo into the "Belt and Road" and the development of the Yangtze River Economic Belt.