Parametric Study for Piled Raft Foundations   Meisam Rabiei Senior Geotechnical Engineering Amirkabir University of Technology, Tehran, Iran Bonyad Maskan Mazandaran Email: meisam_rabiei@yahoo.com
			ABSTRACT

The piled raft is a geotechnical composite construction consisting of the three elements piles, raft and soil which is applied for the foundation of tall buildings in an increasing number. In this paper a parametric study on pile configuration, pile number, pile length and raft thickness on piled raft foundation behaviour are considered. It has been found that the maximum bending moment in raft increases with increase raft thickness, decrease pile number and decrease in pile length. Central and differential settlement decreases with increase raft thickness and uniform increase in pile length. It has also been found that pile configuration is very important in pile raft design. In the scope of this paper, the results of the parametric study are presented and design strategies for piled rafts are discussed.

Keywords: Piled raft; foundation design, numerical analysis, parametric study.

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