What is a caisson pile?

Bored Piles, also known as drilled shafts, cast-in-place piles or caissons, are constructed by drilling and excavating a slender, cylindrical hole and backfilling it with reinforcing steel and concrete.

What are augered piles?

A piling technique; a Continuous Flight Augered Pile is a non-displacement pile used in difficult ground conditions. The drilling process is suitable for use in dense layers and is resistant to ground water or unstable soil conditions.

What is a CFA rig?

Continuous Flight augers piles C.F.A. are non-displacement cast-in-site bored piles. It consists of drilling using a rotary head coupled to a continuous flight auger with hollow stem. After reaching the required depth concrete is pumped down through the hollow stem of the auger to form the pile.

How is Grout placed in Auger pipe?

grout is placed by pumping the concrete/grout mix through the hollow center of the auger pipe to the base of the auger that provides co ntinuous support of the hole. C) Then Steel-reinforcement is placed into the hole. Auger Cast Pile Types Drilled Displacement (DD) Piles Auger Cast Pile Types Auger Cast Pile Types Auger Cast Piles

What are auger cast piles?

Auger Cast Piles „Auger cast piles are typically installed with diameters ranging from 12 to 36 in. and lengths of up to 100 ft. In Europe with more recent powerful rigs, diameters could go up to 60 in. „The reinforcement is in the upper portion of the

What is the construction sequence of a pile tip Auger?

Construction Sequence – Grouting Hole at Base of Auger for Concrete Construction Sequence – Grouting Sequence „Upon achieving the design pile tip elevation, the auger is lifted a short distance typically 6 to 12 in. and grout is pumped under pressure to expel the plug at the base of the internal pipe and commence the flow.

What is Auger placed concrete pile (ACP)?

Augerplaced concrete pile (ACP): Pile formed by rotation of a continuous flight hollowshaft pile augured into the ground to the indicated depth. Grout is injected through auger shaft as auger is being withdrawn in such a way as to exert removing pressure on withdrawing earthfilled auger as well as lateral pressure on soil surrounding hole.