China's highest bridge construction technology reflects: Hong Kong-Zhuhai-Macao main bridge through

The main project of the Hong Kong-Zhuhai-Macau Bridge, the longest cross-sea bridge in the world, formally passed yesterday and has become another masterpiece in the history of China's bridges.

According to reports, Hong Kong-Zhuhai-Macao Bridge is 55 kilometers in length. The three waterway bridge design has its own characteristics, "Chinese knot", "dolphin", "sail" shape combination of Lingding Dingyang ocean into a beautiful scenery.

At the same time, Hong Kong-Zhuhai-Macao Bridge has also set a lot of "the world's most", is the highest embodiment of China's bridge technology.

Among them, the largest amount of engineering, the most technical difficulty is the bridge - Island - Tunnel cluster of the main project, respectively, by 22.9 kilometers of the main bridge and 6.7 kilometers of tunnels and artificial islands form. Bridge using the world's longest steel bridge, only the main girder steel consumption amounted to 420,000 tons, equivalent to the construction of 60 Eiffel Tower weight; weighing 80,000 tons of concrete prefabricated construction plant method in the world for the first time.

Unlike other cross-sea bridges, the Hong Kong-Zhuhai-Macao Bridge is built like "building blocks." First in Zhongshan, Dongguan and other places to do the factory piers, decks, steel box girders, steel pipe piles, and then wait until the calm sea Lingding Yang, a block, layer by layer, a period of assembly.

Dolphin Bridge Tower on Hong Kong-Zhuhai-Macao Bridge, each weighing about 2,800 tons, the construction team called two large-scale self-produced floating pontoons collaborative work, so huge steel tower turned over the sea, accurate positioning in the cap On this, it created a world record.

Of course, such a magnificent bridge should serve more people. The life design of the Hong Kong-Zhuhai-Macao Bridge has broken the usual "century-old practice" in China and formulated 120-year design standards.

In the meantime, the cross-harbor tunnel connected to the bridge has also made remarkable progress and 28 sinking installations have been completed, with the last five remaining. It is expected that the land transit time from Hong Kong to Zhuhai will be changed from 3 hours to half an hour after the completion of the whole line.