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The Great Undersea Wall! The final immersed tube of the deep and medium-sized subsea tunnel begins to be floated

Release time:2024-08-26click:0
The deep and middle channel submarine tunnel is 6,845 meters long, of which the immersed section is 5,035 meters long. It is composed of 32 pipe sections and 1 final joint. It is the longest and widest steel-shell concrete immersed tunnel in the world and can be called the "Great Wall under the Sea" .
This is also the first project in China to adopt a steel shell immersed tube tunnel structure. The world's first two-way eight-lane submarine immersed tube tunnel will be built.
This project is a world-class "bridge, island, tunnel and underground interconnection" cluster project. It was approved by the National Development and Reform Commission at the end of 2015 and started construction on December 28, 2016. construction.
It is a bridge connecting Shenzhen City, Zhongshan City and Nansha District of Guangzhou City in Guangdong Province. It starts from Hezhou Interchange in Baoan District, Shenzhen City in the east and ends at Hengmen Hub in Zhongshan City in the west. It has a total length of 24 kilometers, of which the undersea tunnel is about 6.8 kilometers long and the bridge project is about 17.2 kilometers long.
The entire Shenzhen-Zhongshan Corridor is planned to be completed and opened to traffic in 2024. After it is opened to traffic, it will only take 30 minutes to travel directly from Shenzhen to Zhongshan, which will greatly facilitate communication between the east and west banks of the Pearl River Estuary.
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