Since the construction of the pyramids, people have implemented brilliant, insane, grandiose architectural and engineering projects. Sometimes for this you have to work in the most unexpected and inhospitable places. Including under water. Fortunately, modern technologies provide the broadest opportunities in the field of construction and repair.
Allows you to work in the middle of large water.
Fixing a car or putting up a fence in the country is not that difficult. Most often, even one more or less prepared person will cope with any of these tasks. However, what if you need to fix a huge passenger liner, sea tanker or put a bridge across the sea strait? Such tasks look much more difficult, especially if you add a small detail to them, all this must be done directly on the spot in the water. Especially for such situations, cofferdams were created by humans.
They are very different.
Cofferdam is a temporary waterproof frame that is installed directly in the water at a specific location for engineering work. The process of creating such an engineering structure itself is quite long and complicated. The first step is to drive huge piles at the site of the rubber dam. After that, the structure is assembled on site, dropping in parts to the bottom or assembled in a dry dock, and then brought to the place and installed all at once on piles prepared in advance.
A tricky thing.
Note: The dam cannot be placed anywhere. Before its installation, serious work is being carried out to analyze, first of all, the marine soil at a specific construction site. In addition, engineers must consider the severity of ice and storm attacks as well as temperature fluctuations.
After the completion of the work, the cofferdams are flooded and removed.
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As soon as the rubber dam is installed, the third stage of work begins - this is pumping out the water. When this is done, targeted work will begin at the facility: repair of a ship, construction of a bridge, laying a gas pipeline, liquidating oil accidents, etc. All this has become possible thanks to modern technology.