Reverse skin friction is made, which helps maximize load ability. When load applied on pile, at first some load is taken with the pile to neutralize the reverse pores and skin friction. The pile foundation could be produced in cohesionless soil by going through strategies of displacement and vibration solutions. https://soil-investigation-compan32108.goabroadblog.com/31320465/detailed-notes-on-pile-foundation-design-bangladesh