Augercast piles, slender foundation support members, transmit loads to the ground through skin friction between the pile surface and surrounding soil. These piles are traditionally used as a foundation element but are also a wise choice when a vertical element is required in ground with the potential to cave. Drill Tech installs augercast piles with low-strength, lean-mix backfill concrete. This method minimizes chipping common to high-strength concrete and is especially beneficial for projects that plan to install lagging or remove support beams.