What are different types of caissons?

The four main types of caisson are box caisson, open caisson, pneumatic caisson and monolithic caisson.

• Box.
• Open.
• Monolithic.
• Pneumatic.

Why do caissons have a bell bottom?

When caissons rest on soil, they are generally “belled” at the bottom to spread the load over a wider area. Special drilling bits are used to remove the soil for these “belled caissons”. The caisson foundations carry the building loads at their lower ends, which are often bell-shaped.

What does caisson mean in English?

1a : a chest to hold ammunition. b : a usually 2-wheeled vehicle for artillery ammunition attachable to a horse-drawn limber also : a limber with its attached caisson. 2a : a watertight chamber used in construction work under water or as a foundation.

Which is the best description of a caisson?

A caisson is a watertight structure which is used as an “anchor” for a foundation.

What kind of structure is a caisson foundation?

A caisson foundation also called as pier foundation is a watertight retaining structure used as a bridge pier, in the construction of a concrete dam, or for the repair of ships. It is a prefabricated hollow box or cylinder sunk into the ground to some desired depth and then filled with concrete thus forming a foundation.

How is soil removed from a belled caisson?

Special drilling bits are used to remove the soil for these “belled caissons”. The caisson foundations carry the building loads at their lower ends, which are often bell-shaped. The foundation system of and the soils beneath the building prevent the complex from moving vertically. When a load is placed on soil, most soils settle.

What’s the difference between a caisson and a pier?

Pier foundation is a type of deep foundation, which consists of a cylindrical column of large diameter to support and transfer large superimposed loads to firm strata below. Caissons are watertight structures made up of wood, steel or reinforced concrete built above the ground level and then sunken into the ground.