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The Best in many worlds-Hong Kong-Zhuhai-Macao Bridge

  • Author:Corina
  • Source:onekin
  • Release on :2019-01-09

The Best in many worlds-Hong Kong-Zhuhai-Macao Bridge



The Hong Kong-Zhuhai-Macao Bridge is China's first world-class cross-sea bridge involving “one country, two systems”. The coordination difficulty is unprecedented. The bridge landing point, bridge type line position, port mode and financing arrangement have become the four major focuses of the tripartite game.

Longest

The 5,664 meter long undersea tunnel is made up of 33 reinforced concrete immersed tubes. It is the longest submarine immersed tube tunnel in the world.

Maximum

When submerged, each section displaces about 75,000 tons of water

Heaviest:

prefabricated tubes are manufactured to factory standards and use steel equivalent to the Eiffel Tower.Below the 75,000 ton sinkhole are 256 pre-installed hydraulic jacks.

The most elaborate:

The sea climate conditions, to a large extent, determine the success or failure of floating and docking submerged tube.More than a year ago, the project side cooperated with the Marine environmental forecasting center of the state oceanic administration to make fine and small regional Marine environmental forecasting, and kept monitoring and forecasting every day, spending up to 30 million yuan to find two or three days for each immersed pipe.


The most accurate

Before the installation of the sunken tube tunnel, it is necessary to make the gravel bed foundation in the dug foundation groove, that is, to lay a 42m wide and 30cm thick flat "stone plate" in the seabed of 40m deep, and the flatness error of this "stone plate" should be controlled within 4cm.

Finest:

After the Spring Festival, once the right time is found, the world's most difficult "deep sea kiss" will begin, submerged tube in the sea level of 13 meters to 44 meters below the depth of undocking.The docking was carried out in the seabed with complex environment, and affected by a variety of environmental media. It took 33 times and 3 years.The rubber water stop at the sink pipe connection shall be available for 120 years and the docking error shall be controlled within 2 cm.

bridge involving “one country, two systems”. The coordination difficulty is unprecedented. The bridge landing point, bridge type line position, port mode and financing arrangement have become the four major focuses of the tripartite game.