| Hong Kong and Macao Bridge: "super project" behind the "super innovation" |
September 27th, the main project of the bridge project in Hong Kong Macao bridge. By the British "Guardian" called "one of the seven wonders of the world" of the Hong Kong Zhuhai Macao Bridge, a total length of 55 km, since July 2012, entering the construction unit, the construction lasted more than 4 years, has produced a series of new technologies, new materials and new equipment, in a number of areas to fill the gap, forming the world "Chinese standard" is the highest embodiment of Chinese bridge technology.
China method to achieve high industry
Hong Kong and Macao Bridge project is the largest, the highest technical difficulty is the main project of the bridge - Island - tunnel cluster, respectively, by 22.9 km of the main bridge and 6.7 km of the tunnel and the artificial island. As the steel structure of the longest bridge in the world, the Hong Kong Zhuhai Macao bridge girder steel plates only reached 420 thousand tons, equivalent to 10 of the weight of the bird's nest, can resist 16 typhoons, earthquakes of magnitude 8 and 300 thousand tons of ship collision.
In the Hong Kong Zhuhai Macao Bridge construction site, to see the construction scene crowded, but for the assembly of thousands upon thousands of horses and soldiers, large equipment number of LEGO in site installation. Pier, bridge, steel box girder, steel pipe piles are in Zhongshan, Dongguan and other places in the building construction, and then the ship towed to offshore installation.
HZMB a number of construction technology and standard has reached the international advanced level, forming a series of "Chinese method". Especially the Jiuzhou channel bridge tower installed by the whole vertical lift scheme, also is a national initiative to fill a gap on the tower installation field with integral lifting, sliding chute lifting bracket vertical way. Jianghai direct ship channel bridge three dolphin tower installation uses two large floating crane ship collaboration, more than 2 thousand tons of steel in the implementation of the air sea, finally accurate positioning in the cap, the whole lifting technology research for two years, is the world's first.
The durability problem solve the sea bridge, researchers creatively put forward the "Zhuhai Macao model" anti-corrosion anti shock measures to protect the system, the design of the Hong Kong Zhuhai Macao Bridge service life up to 120 years, breaking the domestic hundred years practice usually. |
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