A REVIEW OF PERAMETRIC STUDY OF RAFT FOUNDATION

Abstract

—In the recent years, there has been significant increase in high rise buildings due to lack of space and
requirement of amenities at a particular place. This has necessitated the use of raft foundation. The use of raft foundation
tends to reduce the chances of differential settlement and allow increased pressure at foundation level to be transmitted
with the concept of Buoyancy Raft.In conventional analysis & design of raft foundation through has been found that the
effect of soil which supports the structure is generally neglected. Actually behavior of structure depends on soil strata.
The design of raft foundation is a soil structure interaction problem. SSI effect depends on many factors like
Superstructure stiffness, Loadings, Footing stiffness, Raft Rigidity. The S.S.I has less influence on low rise buildings.