ANALYSIS OF COMBINED PILE RAFT UNDER AXIAL LOAD
DOI:
https://doi.org/10.33736/jcest.9638.2026Keywords:
pile raft, pile length, raft thickness, CPRF coefficient, settlementAbstract
A pile raft foundation is recognised as the most efficient foundation for high-rise buildings in comparison to conventional group pile foundations. But usually, in the case of practical designs, the contribution of the raft is ignored, and the foundation is designed as a pile foundation alone. Hence, in the present study, an attempt has been made to determine the Combined Pile Raft Foundation (CPRF) coefficients of pile rafts subjected to vertical load. A further parametric study is performed to investigate the effect of pile length, raft thickness, friction angle, and soil modulus on the response of a pile raft. The CPRF coefficient of the pile increases with its length. Furthermore, the settlement of CPRF decreases with an increase in the pile length. Settlement of CPRF decreases with an increase in friction angle as well as soil modulus. The CPRF coefficient of piles decreases, and that of a raft increases with an increase in friction angles. The CPRF coefficient does not alter much with soil modulus.
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