How engineers build under water

Repairing a broken car is not such a problem for a modern person, but far from many people know how to fix a huge ship right in the water. The weight of giant cruise liners can reach 150 thousand tons, such a colossus in the service can not be evacuated. For repairing sea and river transport, for building bridges and laying pipelines under water, cofferdams are used, which are temporary waterproof frames installed directly in the sea.

The process of creating such a dry compartment is long and complicated. Piles of a certain size, suitable for a specific depth, are laid at the desired site. The structure is created right on the spot or the finished one is lowered to the bottom, then water is pumped out of it and work begins on the repair of the vessel or the construction of the bearing piles of the future bridge. Before creating a cofferdam, submarine engineers create a project, analyze the data of soil examinations carried out, take into account seasonal temperature fluctuations, as well as the strength of storm and ice attacks. The device of such an unusual, water-tight compartment is carefully checked to exclude the death of people while working in it.

Currently, this technology is considered the most modern, with its help, expand water channels, build bridges across turbulent wide rivers and eliminate oil accidents. In a smaller version, such a dry chamber system is used in the construction and marine business as a caisson. Caisson - a device of a working sealed container that protects against the ingress of gases and liquids. Such structures are installed in wells or sewers of country houses.

Advanced modern solutions of engineers allow not only to build temporary rooms suitable for the work of builders under water, but also real houses. Many countries already have underwater restaurants, museums, and even residential hotels.