Abstract:
Despite there being very good continues flight auger (CFA) drill rigs on the market (Soilmec, Liebherr and Bauer). Taller and taller buildings are needing deeper and deeper piles, thus the ability to CFA deeper has led to the need to drill to depths approaching 200' in a single pass. See how Berminghammer sizes their leads and does stability calculations to come up with custom deep CFA systems to mount to cranes.