Bottom Driven Piling

Techniques Bottom Driven Piling Open Bored Piles Use sectional flight auger sections at varying diameters 200mm to 600mm to form piles to the design founding levels through dry/self – supporting cohesive substrata CFA Flight Auger (CFA Piling) In this method the auger stays in the pile bore to the final depth, being withdrawn slowly with the pile spoil whilst concrete is pumped through the hollow auger stem into the pile. As well as in loose or granular soils, CFA may be the