Bold And Unbelievable Idea, How Bridges Are Built Over Water ?

How bridges are built over water, bridge construction | STORY PLUS TV
The person who invented the piers of the cross-sea bridge is really a genius. How are the piers of the cross-sea bridge built? First of all, if you want to build piers on the sea, you must first use bombs to blow up all the silt on the seabed. If the bomb is thrown directly into the sea, the power of the bomb will be absorbed by the seawater. If someone dives down to place the bomb, once the time bomb fails, the diver is likely to eat the whole village. The cunning engineer thought of placing a metal tube first, putting the bomb from the metal tube underwater to detonate, and then let the workers go to the seabed to clean up the gravel and silt, and start to build a metal frame. But at this time, the piers of the cross-sea bridge still cannot be built directly, otherwise it will be easily washed away by the sea

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