Analysis of the influence of the foundation depth on the reduction of settlements in piled raft foundations
DOI:
https://doi.org/10.4067/S0718-28132017000200042Keywords:
Piles, Compensated foundation, Numerical modelling, Design, SettlementAbstract
The employment of piled raft foundations constitutes a variant of foundation in grounds with very compressible soils and under large loads. Of vital importance in the design process it is the estimation of the settlement and the proposal of the quantity of piles that guarantee the compliance of the criteria of bearing capacity and allowable settlements. Experimental results suggest that when the depth of foundation increases, the foundation begins to work as a compensated foundation diminishing the total settlements. In this work, results of loads versus settlements obtained with the employment of professional computational programs and spreadsheets programmed in MathCad are shown. It is demonstrated the influence of the depth of foundation on the decrease of the settlement in piled raft foundations.
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