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Keller Africa

Civil engineering company

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PILED FOUNDATIONS

Keller Africa offers an extensive range of pile types, sizes and installation techniques.We provide a full range of services for the building, infrastructure, mining, industrial and marine construction market.

  • AUGER PILES
  • CONTINUOUS FLIGHT AUGER (CFA) PILES
  • DRIVEN TUBE PILES
  • FRANKI DRIVEN CAST-IN-SITU PILES
  • FRANKI FORUM BORED PILES
  • FULL DISPLACEMENT SCREWPILES
  • MICROPILES
  • OSCILLATOR PILES
  • PRECAST PILES
  • ROTAPILES
  • UNDERSLURRY PILES

 

Services

Ground improvement
Ground improvement can increase load bearing capacity, reduce settlement and improve the engineering properties of existing soils.

  • Dynamic compaction
  • Dynamic replacement
  • Rigid inclusions
  • Mixed modulus columns CMM ®
  • Vibro stone columns
  • Vibro compaction
  • Vibro concrete columns
  • Dry soil mixing
  • Mass mixing
  • Wet soil mixing
  • Earthquake drains
  • Wick / PVDs / band drains

 

Grouting
Keller leads the world in grouting technology with systems for all applications from lifting structures to grouting dam curtains.

  • Cavity / bulk / mine fill grouting
  • Compaction grouting
  • Compensation / fracture grouting
  • Injection systems
  • Jet grouting
  • Permeation grouting
  • Polyurethane grouting
  • Rock / fissure grouting

 

Deep foundations
Deep foundations are required whenever weak soils have little capacity to resist an existing load or a change in existing load. They involve the construction of structural elements to transfer loads down to stronger underlying soils or rock.

  • Franki (DCIS) piles
  • Driven precast piles
  • Bored piles
  • Bored piles – cased
  • CFA piles (auger cast)
  • Rota piles
  • Micropiles
  • Ductile iron piles

 

Earth retention
Earth retention retains earth successfully so that it does not move or shift to any unwanted directions.

  • Anchors
  • Shotcrete / Gunite
  • Soil nails
  • Micropile slide stabilisation system
  • Contiguous pile walls
  • Diaphragm walls / barrettes
  • Secant pile walls
  • Sheet piles
  • Slurry cut-off walls

 

Marine
Keller provides design and construct services for near shore marine structures using a range of marine piling and ground engineering techniques.

  • Bridge construction
  • Jetty construction
  • Quay construction
  • Quay maintenance and repair

 

Solutions

  • Improve bearing capacity
  • Bearing capacity / settlement control
  • Liquefaction mitigation
  • Heavy foundations
  • Heave control
  • Re-levelling structures
  • Underpinning

 

Containment

  • Excavation support
  • Marine structures
  • Remediation
  • Seepage control
  • Mine stabilisation / void filling
  • Slope stabilisation