Numerical Study of the Combined Load Capacity of a Hybrid Foundation

摘要

This paper extends available solutions of combined vertical, horizontalrnand moment (VHM) capacity envelopes to a novel foundation conceptrnthat combines a skirted mat with a suction caisson to enable selfinstallationrnand preloading of the footing. This research notablyrnexplores the effect of the circular plan geometry of the footing, andrnimportantly the effect of the central caisson, on the failure mechanismsrnand the resulting VHM capacity through finite element analysis.rnResults demonstrated that the central caisson more than doubles thernhorizontal capacity, with moderate increases in the vertical and momentrnloading directions, respectively.