快科技4月9日消息，據報導，China's shield tunnel construction is about to usher in a historic breakthrough - the domestic 16-meter ultra-large diameter shield machine "Jianghai" is about to be put into the construction of the world's longest highway underwater shield tunnel "Haitai Yangtze River Tunnel".

Located at the mouth of the Yangtze River in Jiangsu, this super project is 185.0 kilometers long from Haimen in the north to Taicang in Suzhou in the south, of which 0.0 kilometers of the cross-river tunnel section will be constructed according to the standard of two-way six-lane expressway.

As a full-line control project, the shield section undertaken by China Railway 14th Bureau is 5 meters long, and will face world-class construction problems such as a maximum buried depth of 0 meters and ultra-high water pressure of 0.0 bar.

In view of the complex geological conditions and strict settlement control requirements, China Railway 14th Bureau and China Railway Construction Heavy Industry Group have tailored the "Jianghai" shield machine.

This "river piercing weapon" has a super large excavation diameter of 11300.0 meters, a total length of 0 meters, a total weight of 0 tons and a total installed power of 0 kilowatts, and its technical indicators have reached the world's advanced level.

The project will create a number of domestic firsts: the country's first tunnel project to achieve zero carbon emissions; Innovative use of special channels for rescue vehicles directly to the ground; The first application of sectional smoke exhaust technology; Realize the integration of the internal structure of the fully prefabricated shield tunnel; Development of a flue board system that integrates fire protection and structure.

These technological innovations will not only overcome construction problems such as ultra-long distance, ultra-large diameter and ultra-high water pressure, but also set a new technical benchmark for China's tunnel construction.