After the hole of desired depth is augered, cement mortar is injected through the swivel device equipped with Auger Drive Unit into the augered hole while the Auger Flight is extracted, and then reinforcing steel cage or equivalent is installed with its own weight into the hole filled with mortar, The mortar generally consists of water, fine sand, portland cement and chemical additives, so it has high fluidity and reinforcing steelcage can be easily installed into the hole filled with the mortar.
This method is applicable for frictional bearing pile, soil-retaining wall and earth anchor bearing pile. Big advantages of this method are no necessity of the casing which protects augered hole, and execution of any length and any diameter of piles at site in accordance to required bearing capacity.

P.I.P piles are commonly referred to by several other names.
Some of them are trademarks or service marks owned by Foundation Contractors and some one are names that try to describe the installation process.

The term "P.I.P" is sometimes replaced with

• Cast-in-place piles
• Cast-in-situ piles
• Continuous Flight Auger (CFA)Piles
• Auger Cast Piles
• Intruded Mortar Piles
• Auger Press Piles
• Augered Pressure Grouted Piles
• Augerpile Foudations
• Grouted Bored Piles
• Augered Grout-Injected Piles
• Drilled Uncased Piles
• Augered Uncased Piles
• Uncased Cast-in-Place Concrete Piles