What is another name for a caisson?

A caisson is often referred to as a pier foundation. This is because both terms describe a type of deep foundation that transfers load deep into the ground, bypassing weaker soil layers to reach more stable, supporting strata. Caissons are typically large, hollow cylinders that are sunk into the ground, creating a foundation that can support heavy loads, making them essential in construction projects involving large structures such as bridges and high-rise buildings.

While deep foundation, spread footing, and column support are all terms relevant to various foundation types, they do not specifically match the definition of a caisson. A deep foundation is a broader category that encompasses caissons but is not synonymous with them. Spread footing refers to a shallow foundation technique, and column support generally describes vertical elements that bear loads, not the foundation type itself.