Investigation of load sharing mechanism of Piled RaftFoundations in sandy soils

Over the past few decades, there has been a significant increase in the use of Combined Piled RaftFoundations (CPRF), which are made up of three components: piles, a raft, and soil. Unlike traditional piledfoundation designs, where the piles bear the majority of the load, piled raft foundations allow for the loadto be distributed between the raft and piles. Therefore, it is necessary to investigate the factors that affectthis mechanism. To do so, a 3D finite element model was created using Plaxis 3D Foundation software andvalidated through a centrifuge experimental test. The model was then used to conduct a sensitivity analysison key parameters that affect load sharing, such as pile length, internal friction angle of the soil, and raftthickness. The investigation revealed that pile length and internal friction angle of the soil (when under 30degrees) significantly impact the load sharing of piled raft foundations, while raft thickness has little effect.These findings can be useful for optimizing the design of piled raft foundations

Investigation of load sharing mechanism of Piled RaftFoundations in sandy soils Keywords:

Combined Piled Raft Foundations (CPRF) , Finite Element Method , Piled Raft LoadSharing , Sandy Soil