During construction it is often necessary to form a stable excavation and to ensure that any associated movement will not damage neighbouring structures or utilities. Keller offers flexible solutions to solve even highly complex excavation support problems both in a temporary or in a permanent…
Keller offers a full range of services for the marine construction market. This includes the design and construction of new ports, jetties and quays as well as the extension and restoration of existing structures. We also have solutions for tidal barriers and coastal protection schemes.
Wet soil mixing, also known as deep soil mixing, improves the characteristics of weak soils by mechanically mixing them with a cementitious binder slurry.
Mass mixing (MSM) is a specialised technique used to improve soft soils and loose sands, as well as fill materials. The technique is very flexible and can be used over water and on land. The MSM method is predominantly used to control settlement, improve stability of soils and provide temporary…
Soil nailing uses grouted, tension-resisting steel or glass fibre composite elements (nails) to reinforce in situ soils to create a gravity retaining wall for permanent or temporary excavation support.
Compensation or fracture grouting is the injection of a cement slurry grout into the soil creating and filling fractures that can then be potentially used to lift the overlying soil and structures.
Driven steel piles are installed using impact or vibration hammers to a design depth or resistance. Keller installs the complete suite of driven piles from small diameter tube piles to large diameter steel cassions to support your project.
Canopy/umbrella tubes (with diameters of typically 76-168mm but occasionally larger) are a support system used in conventional and mechanical tunnel construction in poor soil conditions.
Keller provides geotechnical solutions for the commerical market sector for both existing and planned structures, including office buildings, hotels, distribution centres, retail, data centres, and other structures.
Continuous flight auger piles (CFA) are cast-in-place piles, using a single continuous hollow stemed auger. Vibration free and low noise, this environmentally friendly piling system is ideally suited to installation in unstable soil conditions and urban environments.
Keller has Australia’…
Permeation grouting, also known as cement grouting or pressure grouting, permeates coarse, granular soils with flowable particulate grouts to create a cemented mass.
Vibro compaction is a ground improvement technique that densifies clean, cohesionless granular soils with a downhole vibrator. It’s a technique first developed by Keller in the 1930s that we’ve used on thousands of projects since.
This technique involves construction of loadbearing columns made from gravel or crushed stones with a vibrator to reinforce all soils in the treatment zone and densify surrounding granular soils. It’s a technique first developed by our company founder, Johann Keller, that we’ve used on thousands…
Dry soil mixing is a ground improvement technique that improves soft, high moisture clays, peats, and other weak cohesive soils, by mechanically mixing them with dry cementitious binder.
Keller’s broad product portfolio means our engineers have more options when it comes to an effective and efficient designs for our clients.
Operational for more than 60 years, Keller is Australia's leader in geotechnical solutions.
Subsidence, the gradual downward movement of a building or structure, can result in damage to buildings. Keller can apply re-levelling techniques to bring buildings back to their correct levels, strengthen any weak ground under and around the foundations and avoid any recurring sinking issues.…
