The pile transfers the load of the building to the soil across the full height of the pile, by friction. The load therefore bypasses the weak layer and is safely transferred to the strong layer.įriction piles work on a different principle. The key principle is that the bottom end rests on the surface which is the intersection of a weak and strong layer. In a sense, this pile acts like a column. The load of the building is transferred through the pile onto the strong layer. In end bearing piles, the bottom end of the pile rests on a layer of especially strong soil or rock.
