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Geocast System

With the assistance of laser-guided accuracy, the Geocast System vertically excavates and continually casts, steel reinforced concrete retaining walls.

Because the Geocast System can work safely within 50mm of adjacent structures, it's able to provide architects and developers the benefit of including additional car spaces when planning underground car parks.

This in turn may increase the allowable number of apartments within a building, under council regulations.

The Advantages of the Geocast System

  • Time saving due to its speed of construction
  • Ability to work 50mm off the face of an adjoining boundary wall
  • Water resistance - gives the ability to excavate in dry conditions
  • No vibration which eliminates damage to adjoining structures
  • Minimal noise
  • Acceptable surface appearance
  • Walers are not required when allowing for temporary sand anchors or internal bracing

All walls are designed and certified by our external consulting engineer, The Geocast System is operated as a six step process:

  1. Set up lasers
  2. Insertion of arm into ground
  3. Delivery of concrete and mixing of fibre into concrete truck
  4. Delivery of concrete through concrete pump to Geocast machine
  5. Arm commences trenching with sand being removed & simultaneously reinforced concrete being poured down back of the arm
  6. When section of wall completed, insert reinforced bars into wet concrete of Geocast wall

Other Services


Geocast install their own temporary sand anchors

Nominal centres for each anchor is 3m

No walers are necessary for the anchors in a Geocast wall

Geocast can organise a Finite Element Analysis model of the Geocast wall and anchors (Wallap Analysis) if required


Geocast can perform the excavation task if required

If anchors are to be installed, excavation needs to be done in stages which makes it more convenient if its done by Geocast


Geocast has an alliance with Coates Shorco to undertake de-watering

Geocast through Coates Shorco can provide the flow chart modelling and water discharge testing