ABSTRACT
A pile foundation can be used to transfer superstructure loads to stronger soil layers deep underground. Hence, it is a viable technique for foundation construction in the presence of undesirable soil conditions near the ground surface. However, owing to the high cost involved in piling, this foundation type is only used after other less costly alternatives, such as (1) combined footings and (2) ground modification, have been considered and ruled out for a particular application. On the other hand, piles may be the only possible foundation construction technique in the presence of subgrades that are prone to erosion and in offshore construction involving drilling for petroleum.
