After six years of preparation and nine years of construction, the Hong Kong Zhuhai Macao Bridge was officially opened. From scheme design to construction, China has created one by one, breaking the limit of the world’s Offshore Bridge Engineering.

The total length of the Hong Kong Zhuhai Macao Bridge is about 55 kilometers, of which the main works include 22.9 kilometers of bridges, 6.7 kilometers of subsea tunnels and east-west artificial islands connecting tunnels and bridges.

CCTV reporter Wu Jie: my current position is the dongrengong island of the Hong Kong Zhuhai Macao Bridge. Above my head are the dense takeoff and landing routes of the Hong Kong International Airport. Behind me is the busy golden waterway on Lingdingyang. Many bridge experts believe that it is almost an impossible task to link the core areas of Guangdong, Hong Kong and Macao and avoid affecting the sea and air transportation here.

In order to realize the non-interference of sea, land and air traffic, the Hong Kong Zhuhai Macao Bridge adopts the world’s first integrated scheme of bridge, island and tunnel. On the vast sea, engineers surrounded two artificial islands of 100000 square meters with 120 huge steel cylinders with a diameter of 22 meters and a height of 18 floors. The whole project took only 212 days.

The 6.7-kilometer-long subsea tunnel is composed of 33 large immersed tubes docked on the seabed. Each immersed tube weighs more than 80000 tons, which is equivalent to an aircraft carrier, and the accuracy of immersed tube docking should reach the centimeter level. These are unprecedented technological innovations in the history of bridge construction in the world

Su quanke, chief engineer of Hong Kong Zhuhai Macao Bridge Authority: bridges, tunnels and artificial islands are accurately manufactured in factories, and large-scale equipment is pulled over and installed. Therefore, the quality of this bridge is very high, which pushes China’s bridge construction to the level of industrial construction. When foreign experts came to our bridge, they were very surprised. They didn’t expect that the Chinese people could build the bridge like this.

In terms of the overall bridge design, the main bridge of Hong Kong Zhuhai Macao Bridge is largely constructed of prefabricated steel structure, with a total steel consumption of 420000 tons, which is enough to build ten bird nests. The exquisite construction technology makes the service life of the bridge up to 120 years, which is 20 years longer than the common design service life of sea crossing bridges in the world, and has become a new benchmark for bridge construction in the world.

Tan Guoshun, project manager of Hong Kong Zhuhai Macao Bridge project of China Railway Bridge Bureau: the requirements for the accuracy of each component are higher and higher. If the deviation is large, it can’t be installed. The requirement of 1 cm deviation (installation) proposed by Hong Kong Zhuhai Macao Bridge is unimaginable in the process of large-scale engineering construction in the world. The technical standard of Hong Kong Zhuhai Macao Bridge is much higher than that of any country in the world.

After the completion and opening of the Hong Kong Zhuhai Macao Bridge, the land transportation from Hong Kong to Zhuhai will be reduced from the previous three hours to 30 minutes. This super project on Lingdingyang will rewrite the economic territory of the Pearl River Delta and lay a solid foundation for the integration of Guangdong, Hong Kong and Macao.