Experimental And Analytical Investigation Of Piled Raft Foundations On Silty Sand Soils

Abstract

The effects of raft foundations on sandy, silty soil were investigated. On difficult soil profiles, engineers utilise piled-raft foundations to combine pile and raft strengths. The study indicated that silty sand lowers and deforms, causing foundation problems. plaxis-3d is the tool to investigate the effects of pile length, raft thickness, and pile spacing on foundation load-carrying, settlement, and stability. To understand piled raft foundations at various stress levels by studying piles, rafts, and silty sand interactions. To comprehend the system, we investigated settlement patterns, load-displacement curves, and failure processes. Researchers are experimenting with soil modification and strengthening techniques for silty sands on raft foundations. Discover how ground improvement and geosynthetic reinforcements may be used to strengthen foundations and reduce settlement. This experiment demonstrates about piled raft foundations on silty sandy soil beds, which improves load carrying capacity and reduces settlements. The findings might assist engineers and practitioners in enhancing foundation designs, construction, and the stability and dependability of silty sandy soil structures. The piled raft foundations were evaluated using plaxis-3d. This research particularly focuses on analysis and settlement of pile raft foundation with variation of pile spacings of 3, 4, and 5d and lengths of 10, 20, and 40d (pile diameter) by consideration of constant load application and same number of piles. According to above study settlement of piled raft group reduces with length of piles and spacing between piles are less effect in settlement