A caisson is a structure used in underwater construction to provide a dry, protected area for workers and materials.
What Is A Caisson Wall. Let's take a moment to look a little closer at why caisson construction is so important. This is a box type structure having no top or bottom(during construction) and mainly consists of vertical walls.
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It is usually rectangular or circular in plan and may be tens of meters in diameter. A caisson is a retaining, watertight structure used. Caisson are the structures that made up of wood, steel or reinforced concrete built above the ground level and then sunken into the ground.
The term caisson is derived from the french word 'caisse' meaning a box.
A pneumatic caisson is like a box or cylinder. It is used in dry ground or in moderate amounts of water. Caissons are sunk through ground or water to exclude. Caissons are used for bridge piers, abutments in rivers and lakes, docks and wharves, break water and other shore protections works, and large water front structures such as pump houses subjected to very heavy.
