The Great Wall under the Sea! It took 5 years for the subsea tunnel of the deep-middle passage to be closed.

Thanks to CTOnews.com netizen West Window old clues delivery! CTOnews.com June 11 news, According to CCTV news report, Just, Guangdong Communications Group released the news, The world's longest and widest steel shell concrete immersed tube tunnel-Deep Middle Passage submarine tunnel final joint successfully launched, Through the measurement results show that, And the east E24 pipe joint accurate docking.

CTOnews.com noted that it has been exactly five years since the commencement of the immersed tube steel shell test section of the subsea tunnel in April 2018. The "Great Wall of the Sea" has finally been closed, and Shenzhen and Zhongshan have realized "hand-in-hand" on the seabed of Lingdingyang Ocean.

Shenzhong Passage integrates "bridge, island, tunnel and underwater intercommunication," with a total length of 24km, among which the subsea tunnel is 6845m long and the immersed pipe section is 5035m long. It consists of 32 pipe joints and 1 final joint. It is the first two-way eight-lane steel shell concrete immersed pipe tunnel in the world with a design speed of 100km. After the completion of the project, Zhongshan will be able to cross the river directly to Shenzhen, and the journey time will be reduced from two hours to half an hour, effectively promoting cross-strait transportation and economic development.