The E21 pipe section of the deep and middle channel sinking tunnel completes the sinking docking

Floating transport installation integrated ship positive belt deep middle channel sinking tunnel E21 tube festival for floating transport operation Su Zhenfei Photo

Yangcheng Evening News reporter Wang Danyang, correspondent Yuejiao Xuan Xuan and Yuelu Jian report: On September 21, Guangdong Provincial Transportation Group released news that major national projects and the core transportation hub of the Guangdong -Hong Kong -Macao Greater Bay Area -the Shenqian tunnel of the Shenzhen -Middle Channel E21 tube joint complete underwater docking. At this point, the installation length of the underwater tunnel pipeline of the underwater tunnel reached 4702.8 meters, and the project construction made a major breakthrough.

The Shenzhen -Middle Channel Underwater Tunnel is 6845 meters long, of which the section of the sinking pipe is 5035 meters long. It consists of 32 pipe festivals and one final connector. It is the first large -scale and domestic application of this structure in the world. Sink pipe tunnel.

The E21 pipeline is a standard tube section, 165 meters long, and weighs about 80,000 tons after pouring. In order to further verify the installation accuracy of the sinking tube, so as to provide more accurate data parameters for the final pipe dragon, the project first adopts the double -manhole dual measurement tower structure in the E21 pipe section.

At present, the Shenzhen -Middle Channel island tunnel and bridge engineering are two -line. The sinking tunnel has a total of 30 pipelines, and the remaining 2 pipe festivals and one final connector are not installed. It is planned to complete the storage installation of 1 pipe section during the year. East and west artificial islands are promoted in an orderly manner. In terms of bridge engineering, Zhongshan Bridge is carried out on the construction of roads and subsidiary facilities; Lingyuyang Bridge is expected to complete the main cable stocks in September. The project is planned to be opened to traffic in 2024.

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