Applications and Techniques

Pile Foundation / Deep Foundation Techniques

Continuous Flight Auger Drilling (CFA)
Continuous Flight Aauger (CFA) Piles are Hollow Auger Piles also know as Deep Foundations Cast in Place or Helical Displacement (HDP)
Full Displacement Pile System (FDP)
Drilling with Cased Continuous Flight Auger (CCFA)
Driven Cast-In-Situ Piles (DCIS)
Ductile Piles
Secant Pile Walls
Tangent Pile Walls
Rigid inclusion or Controlled stiffness columns (CSC®)
Controlled modulus columns; CMC
Bi-modulus columns or Hybrid columns (Colonne à module mixte/CMM®)
DSM - Wet soil mixing, also known as Deep soil mixing or Mass stabilization
Vibro Concrete Columns or Vibro Displacement Columns (VDC)

Controlled modulus columns; CMC

Controlled Modulus Columns were developed in the 1990s to overcome problems of lateral confinement in highly compressible and organic soils.

IMPLEMENTATION

These inclusions can be installed with or without soil displacement using low-pressure injection (generally up to 2 bars) of a grout or concrete through the hollow core of the drilling tool. Most Controlled Modulus Columns have a diameter of between 250 and 500 mm.

BENEFITS

• Rapid execution.

• Significant reduction of settlement compared to untreated soil.

• Offering excellent results for all types of soil (cohesive or granular) up to depths of 30 metres or more.