PERFORMANCE ANALYSIS OF PILED RAFT FOUNDATION

Abstract

For very heavy structures where Raft foundation is not safe to meet the design aspects, Piled Raft foundations are used. Piles are added at critical locations to meet the design requirements of a safe foundation. Piled Raft foundation, not only improves the ultimate load capacity of foundation but also improves settlement and differential settlement performance of foundation. In recent years, Piled Raft foundation is used widely to achieve above said benefits. In this study, out of a lot of number of available methods of analysis and design of Piled Raft foundation, a few are discussed. In this study, foundation of multi storey building has been analyzed for different storey. For lower storey of building, it is safe to use Raft Foundation. But with increase in number of storey, load increases and after certain storey it is important to add piles at critical locations in Raft foundation. Study has been carried to find the optimum number of storey up to which Raft foundation is saf...