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E11 Immersed Tube Tunnel Successfully Installed for HZMB project

At 22 o'clock on July 21st 2014, immersed tube E11 for island and tunnel works of Hong Kong-Zhuhai-Macao Bridge Project is successfully installed underwater by FHEC, and the immersed tube axis, elevation, longitudinal gradient  fully meet the design criteria. So far, immersed tubes in all installed for the project by FHEC reaches 1845m long.
 
E11 immersed tube is 180 meters long and weighs about 80,000 tons, the installation water depth is 44.5 meters. It is the first tube section after diversion pont of Lingding waterway.
 
Hong Kong-Zhuhai-Macao Bridge (HZMB) Project is composed of 33 immersed tube tunnels, while 19 tube sections are installed in 40m deep water area, and the deepest installation area is over 45 meters; tube trench depth is over 30 meters. Such installation works are quite difficult with high construction risks.