Rotary Bored Piling (RBA)

This particular method can be used where a high load capacity of the pile is required, but where the pile depth is limited. A rotary piling rig can have a phenomenally big diameter, so it will allow getting good ground bearing base on mass concrete fill, and you can still pile to a reasonable depth (circa 25m).

RBA is an option suited for clay /chalk grounds where open bore pile can be formed without the need of concreting via auger.