This deep foundation construction method utilizes a hollow-stem auger with a rotating cutting head to drill into the earth. Concrete or grout is then pumped through the hollow stem of the auger as it is withdrawn, creating a continuous, cast-in-place pile. This technique is particularly suitable for various soil conditions, including clay, silt, and sand, and can create piles of substantial diameters and depths.
Its widespread adoption stems from the ability to create stable foundations efficiently and cost-effectively in challenging geotechnical environments. This method offers advantages over driven piles in noise reduction and vibration control, making it ideal for urban settings or areas sensitive to ground disturbances. Historically, this technology evolved from simpler auger-based drilling methods, driven by the need for more robust and reliable deep foundation solutions in complex soil profiles.
