Abstract—In order to understand the load-settlement behavior and load sharing of piled raft resting on sand soil, experimental tests on model piled raft were conducted. The parameter studied were the influence of raft size and number of piles. The testing program includes tests on models of unpiled raft and rafts on 1, 4 and 9 piles. The model piles beneath the raft are non-displacement piles. The improvement in load bearing capacity is represented by load improvement ratio, foundation stiffness and reduction in settlement is represented by settlement reduction ratio. The influence of raft size and number of piles on the load improvement ratio, foundation stiffness and settlement reduction ratio are presented and discussed. The results of this tests shows that as the number of piles increases, the load improvement ratio, foundation stiffness and settlement reduction ratio increases and as the raft size increases, the load improvement ratio, foundation stiffness and settlement reduction ratio decreases.

Index Terms—Raft, Piled raft, Raft size, Sand soil, Model tests

Cite: Jaymin Patil, Vasanwala S. A., and Solanki C. H., "Investigation of the Behavior of Piled Raft in Sand: An Experimental Study," International Journal of Structural and Civil Engineering Research, Vol. 4, No. 1, pp.1-9, February 2015.