What Are Auger Cast Piles?

Auger cast piles are a type of drilled foundation and are both end-bearing and friction-based. Pile diameters of 12” to 18” are typical, but larger piles are available.

How Are Auger Cast Piles Installed?

Auger cast piles are installed by rotating a continuously flighted hollow shaft auger into the soil to a specified depth. High strength cement grout is pumped under pressure through the shaft as the auger is slowly withdrawn. Reinforcing steel is added per pile specifications.

Benefits of Auger Cast Piles

• Poor subsoils
• Environmentally sensitive sites
• High load needs
• Cost-effective
• Friction and end bearing piles

Drawbacks of Auger Cast Piles

• Wait 4-7 days for grout to cure
• Time-sensitive installation
• No data while installing
• Load test after 7 days