The cross-harbour tunnel of the Hong Kong-Zhuhai-Macao Bridge is 5.6 kilometers long. It is now the longest immersed tunnel in the world and the longest bridge-tunnel combined highway in the world. It is also the first immersed tube tunnel in China. The submarine part is about 5664 meters, which consists of 33 giant immersed tubes and 1 final joint of closure section. The maximum installation depth exceeds 40 meters.
2065438+July 7, 2007, the main project of Hong Kong-Zhuhai-Macao Bridge ushered in an all-round historical moment. Following the completion of the main bridge in September 2065438+2006, the cross-harbour tunnel of the Hong Kong-Zhuhai-Macao Bridge was successfully completed on the same day. By the end of the year, the Hong Kong-Zhuhai-Macao Bridge will be completed and opened to traffic, and the land journey from Hong Kong to Zhuhai and Macao will be shortened from 3.5 hours to half an hour.
Extended data:
The embedded sections of the East and West Daotou tunnels of the cross-harbour tunnel of the Hong Kong-Zhuhai-Macao Bridge are spliced by 33 prefabricated immersed tubes with a displacement of 80,000 tons each and a "final joint" with a length of about12m and a weight of 6,500 tons, with a total length of about 6.7 kilometers.
The Hong Kong-Zhuhai-Macao Bridge with a total cost of over 72 billion yuan was jointly funded by the central government and the governments of Guangdong, Hong Kong and Macao. The planned charging period is 50 years, and the designed service life is 1.20 years. After completion, it can resist an earthquake of magnitude 8.
The Hong Kong-Zhuhai-Macao Bridge Authority is a public institution established by the Hong Kong Special Administrative Region Government, the Guangdong Provincial People's Government and the Macao Special Administrative Region Government, which is mainly responsible for the organization and implementation of the main project construction, operation, maintenance and management of the bridge.
The national construction of the Hong Kong-Zhuhai-Macao Bridge has created the "China speed" of island construction in the open sea, and it took 22 1 day to complete the world engineering record of two artificial islands, shortening the construction period by more than two years and realizing green construction. It is also described as "the largest, highest standard and most challenging cross-sea bridge project in China and even the world today, and is known as the' Mount Everest' in the bridge industry.
Baidu Encyclopedia-Hong Kong-Zhuhai-Macao Bridge Cross Harbour Tunnel