Peoples Daily inform E18 pipe section of the deep channel immersed tube tunnel is undergoing floating operation in success. E18 pipe section is 165 meters long and is a standard pipe section for climbing section. Total length of installed pipe sections has reached 3877.8 meters.

Shenzhen-Zhongshan Channel 24 kilometers. Submarine tunnel is 6.8 kilometers long. Immersed pipe section is 5 kilometers long. It has 32 pipe sections and one final joint. World's first ultra-long and ultra-wide two-way eight-lane submarine immersed tunnel inform Peoples Daily.

http://sz.people.com.cn/BIG5/n2/2022/0425/c202846-35239727.html