Rock / fissure grouting
Technique
Rock / fissure grouting Rock grouting is normally done in fissured rock to reduce the flow of water along the joints and discontinuities in the rock. Rock/fissure grouting illustration Common uses…
/expertise/techniques/rock-fissure-grouting
Compaction grouting
Technique
Compaction grouting Low mobility (compaction) grouting involves the injection of a low slump, mortar grout to densify loose, granular soils and stabilise subsurface voids or sinkholes. Compaction…
/expertise/techniques/compaction-grouting
Cavity / bulk / mine fill grouting
Technique
Cavity / bulk / mine fill grouting Bulk filling generally uses a cement/pulverised fuel ash (PFA) mix to suit site conditions with compressive strengths in the order of 1.0 N/mm2. The mixes may…
/expertise/techniques/cavity-bulk-mine-fill-grouting
Polyurethane grouting
Technique
Polyurethane grouting Polyurethane grouting involves the injection of expanding polyurethane to fill and seal cracks and voids and re-level slabs. Polyurethane grouting illustration Common uses…
/expertise/techniques/polyurethane-grouting
Driven precast piles
Technique
Driven precast piles Driven piles are deep foundation elements installed using impact or vibration hammers to a design depth or resistance. Driven precast piles illustration Common uses Can be used…
/expertise/techniques/driven-precast-piles
Franki piles
Technique
Franki piles Franki piles, also known as pressure injected footings (PIFS), are high-capacity, cast-in-place elements constructed using a drop weight and casing. Franki piles illustration Common uses…
/expertise/techniques/franki-piles
Ductile iron piles
Technique
Ductile iron piles Ductile piles are a deep foundation method using the displacement technique with prefabricated piles made of ductile cast iron available in 118 mm and 170 mm diameters with…
/expertise/techniques/ductile-iron-piles
Helical / screw piles
Technique
Helical / screw piles Helical piles, also known as screw piles, are constructed using steel shafts with helical flights (helix/helices) of various sizes to suit the site specific ground conditions.…
/expertise/techniques/helical-screw-piles
Macropiles
Technique
Macropiles A macropile® is an ultra-high capacity micropile, with high strength grout, steel reinforcement, and increased diameter over 300mm. Macropile illustration Common uses Provide structural…
/expertise/techniques/macropiles
Micropiles
Technique
Micropiles Micropiles, also known as minipiles, pin piles, needle piles, and root piles, are a deep foundation element constructed using high-strength, small-diameter steel casing and/or threaded…
/expertise/techniques/micropiles
Shotcrete
Technique
Shotcrete Shotcrete can be used to create a natural-looking surface covering sculptured, textured or stained while wet to blend in with the environment.  Shotcrete illustration Common uses…
/expertise/techniques/shotcrete
Bored piles / drilled shafts
Technique
Bored piles / drilled shafts Bored piles are a very effective, state-of-the-art construction element with many applications in foundation and civil engineering. Bored piles illustration Common uses…
/expertise/techniques/bored-piles-drilled-shafts
Secant pile walls
Technique
Secant pile walls A secant pile wall consists of overlapping (secant) piles to form structural or cutoff walls and achieve the required water tightness. The design can incorporate steel bar or beams…
/expertise/techniques/secant-pile-walls
Vibro concrete columns
Technique
Vibro concrete columns This technique involves construction of concrete columns with a bottom-feed, down-hole vibratory probe to transfer loads through weak strata to a firm underlying stratum. Vibro…
/expertise/techniques/vibro-concrete-columns
Dynamic replacement
Technique
Dynamic replacement Dynamic replacement is a variation on dynamic compaction and uses the energy of a falling weight to drive large diameter granular columns into cohesionless soils and fills.…
/expertise/techniques/dynamic-replacement
Bridge construction
Technique
Bridge construction A bridge crossing a body of water creates difficult conditions for the construction of its foundations. Keller can use various techniques to meet the challenges according to the…
/expertise/techniques/bridge-construction
Jetty construction
Technique
Jetty construction Keller has the experience and expertise to construct long jetties into deep water to allow the berthing of large vessels without the need for any dredging. Jetty construction…
/expertise/techniques/jetty-construction
Wharf construction
Technique
Wharf construction Keller has the engineering capacity to design flexible and tailored wharf construction solutions to meet different soil conditions and requirements. Wharf construction illustration…
/expertise/techniques/wharf-construction
Wharf maintenance and repair
Technique
Wharf maintenance and repair Demolition of quay walls can be a long and costly process, making their repair or improvement a more cost-effective solution. Keller has a wide portfolio of techniques…
/expertise/techniques/wharf-maintenance-and-repair
Injection systems
Technique
Injection systems Injection systems involve the injection of aqueous solutions into the ground to treat expansive, collapsible, and desiccated clay and railroad subgrade mud pockets. Injection…
/expertise/techniques/injection-systems