Pile Foundation A shallow foundation is usually provided when the soil at a shallow depth has adequate capacity to support the load of the superstructure. However, in situations where the soil at shallow depths is poor, in order to transmit the load safely, the depth of foundation has to increased till a suitable soil stratum is met. In view of increased depth, such foundations are called deep foundations. Piles, Piers and Wells are example of deep foundation. What is Pile foundation? A pile is a relatively small diameter shaft, which is driven or installed into the ground by suitable means. The piles are usually driver in groups to provide foundations for structures. The pile groups may be subjected to vertical loads, horizontal loads or a combination of vertical and horizontal loads. This piles are usually made of concrete and steel which are used to support the structure and transfer the load at desire depth either by end bearing or skin friction. Where pile foundation are ...