DEEP FOUNDATIONS

Deep foundations transfer structural loads through weak or unstable soil down to stronger, more stable layers below. We install solutions such as Augercast (CFA) Piles, Cased Continuous Flight Auger (CCFA) Piles, Full/Direct Drilled Displacement Piles (FDP), Drilled Caissons, Drilled Micropiles, Drilled Shafts, Anchors, and Driven Piles using precision equipment and engineering expertise to ensure proper load transfer. These systems provide the strength, stability, and reliability needed for high-rise buildings, heavy infrastructure, and challenging urban sites where shallow foundations alone aren’t sufficient.

Deep Foundation Solutions:

Continuous Flight Auger (CFA) piles

CFA piles, also known as Auger Cast Piles (ACP), are installed using a hollow stem continuous flight auger will the drill bit and plug at the tip.

ECD utilizing a Bauer RG 27 S to install cased continuous flight auger (CFA) piles
Cased Continuous Flight Auger (CCFA) piles

Cased CFA piles utilize dual rotary drilling techniques where the outer temporary casing rotates in an opposite direction from the inner continuous flight auger.   

Full/Direct Drilled Displacement piles (FDP)

FDP piles are installed with a similar technique as the CFA piles except no or a relatively small amount of soil cuttings (spoils) are removed from the ground. 

Drilled Caissons

Drilled Caissons are very high-capacity deep foundations typically installed when competent bedrock is encountered within about 150-ft from ground surface.

Drilled Shafts

Drilled Shafts are typically installed by drilling a large diameter (3- to 8-ft) casing to design depth.

Drill Rig
Drilled Micropiles

Drilled Micropiles, commonly known as minipiles, are installed by drilling a casing typically 9.625-inches to 24-inches in diameter into the load bearing soil stratum.

Drilled Structural Tie-downs (Anchors)

Tie-down anchors are tension elements typically installed below shear cores of high-rise structures or where tension loads are required.

Driven Piles

Driven piles are installed by vibratory or impact methods and can be made of timber, steel or precast concrete.

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