Recently, it weighed 460 tons
Painting the "Dragon King of the East China Sea" pattern
The cutterhead of the "Dinghai" shield machine was hoisted to
Yongzhou Railway Jintang Undersea Tunnel
Zhoushan side shield launch shaft
Lay the foundation for the shield machine to start crossing the sea
marks this undersea tunnel
It is about to enter the official construction stage
The Jintang Cross Harbour Tunnel is a Ningbo-Zhou railway
Full line control engineering
It connects the two cities of Ningbo and Zhoushan
The total length is 16.18 km
Among them, the submarine shield section is 11.21 kilometers long
The maximum buried depth is 78 meters, and the maximum water depth is 39 meters
"Dinghai" shield machine
总长135米，总重约4350吨
It is 8 times the weight of the regular model
Definitely the "Big Mac" of shield machines
It consists of a cutterhead, a main unit, a device bridge, and a cutterhead
Consists of 4 trailers
The cutterhead diameter reaches 14.57 meters
"Dinghai" shield machine cutterhead
Painted with the "Dragon King of the East Sea" pattern
It means "Dinghai Shenlong"
The builder challenge is also expressed
Determination to solve world-class engineering problems
The "Dinghai" shield machine started from the Jintang working shaft on Jintang Island, Zhoushan City, and excavated 6,270 meters from east to west to cross the seabed waters of Jintang, and the "Yongzhou" shield machine was excavated from west to east. The "Yongzhou" shield machine and the "Dinghai" with the cutterhead painted with the "Ruilong" pattern can be described as a pair of "twin brothers", and the final assembly has reached the world-class level. At that time, the "Dragon King of the East China Sea" will meet "Ruilong" in the depths of the sea.
The Yongzhou Railway starts from Ningbo East Railway Station in the west, passes through Yinzhou District and Beilun District of Ningbo City, Jintang Island, Zhangzi Island and Zhoushan Island in Zhoushan City, and reaches Baiquan Town in Dinghai District in the east, with a total length of about 77 kilometers and 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.
After the completion of the Yongzhou Railway
It will fill the last districted city in Zhejiang Province
There is no gap in the railway
For the improvement of the layout of the railway network
Promote the development of tourism along the Belt and Road
Accelerate the integration of Zhoushan and Ningbo
"The Belt and Road" and the Yangtze River Economic Belt, etc
Significant