Which of the following foundation items must be integrated under a concrete cap?

A) Isolated column footings
B) Wall footings
C) Driven piles
D) Drilled piers

The answer is C. Driven piles.

Explanation:

Driven piles, in construction, are used in the building of foundations and they are also used to provide support for structures. This is evident in transferring their load to layers of soil or rock which possess the bearing capacity that is sufficient and also suitable settlement characteristics.

Driven piles are also used in the support of the following structures:

- embankments,

- retaining walls,

- anchorage structures

- cofferdams,

- bulkheads,

- buildings,

- towers,

- bridges,

- tanks,

- walls, etc.

Driven piles are the most cost-effective solution for deep foundation.