• Ankit Kumar
• Dr. K.S Gill
• Mr. Amandeep Singh

Deep foundations i.e. piled raft foundations are commonly used to bear the heavy loads ofbuildings and structures, however, loading may cause enormous bending moments andshear stresses in the piles due to which they may fail. Thus, this paper signifies a numericalanalysis of nonconnected piled raft by introducing a granular layer (cushion) between the piles andraft. For this study, models are simulated in Plaxis 3D under vertical loading with stagedconstruction.Inthe case of connected piled raft foundation the piles are directly loaded by the raft through theirheads but in unconnected case the load is redistribute through cushion. The mobilized capacity ofpile depends on the pile-subsoil relative stiffness in connected case but on the compressibility ofthe interposed layer in later case. The simulation results have shown that a well-designedcombination of connected and non-connected piles can be used to reduce total settlement, shearstresses and bending moments simultaneously, which will be more efficient and economical whencompared to conventional method.

Cushion,numerical analysis, Unconnected piled raft

"NUMERICAL ANALYSIS OF UNCONNECTED PILED RAFT UNDER VERTICAL LOADING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.234-238, May 2019, Available :http://www.jetir.org/papers/JETIRCW06045.pdf

"NUMERICAL ANALYSIS OF UNCONNECTED PILED RAFT UNDER VERTICAL LOADING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp234-238, May 2019, Available at : http://www.jetir.org/papers/JETIRCW06045.pdf