A REVIEW ON PILED RAFT FOUNDATION FOR HIGH-RISE BUILDING

Abstract

The Piled raft foundation has gained popularity in the field of construction. Construction of raft at shallow
depth on soil having low bearing capacity to get uniform settlement is very well known. In the situations where the raft
foundation alone does not satisfy the design requirements, and then it may be possible to enhance the performance of the
raft by addition of piles. The use of a strategically located limited number of piles, may improve both the ultimate load
capacity and settlement performance of raft. The analysis of Piled raft is a complex problem, even more complex than
that of a soil supported raft, as too many parameters influence the behavior of the system. There are various parameters
which influence the sharing of load between piles and raft, between piles themselves and between piles and soil and as
such the exact behavior is unpredictable for Piled raft system.