Excavation support
Solution
Excavation support 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…
/expertise/solutions/excavation-support
Wet soil mixing
Technique
Wet soil mixing Wet soil mixing, also known as the deep mixing method, improves the characteristics of weak soils by mechanically mixing them with cementitious binder slurry. wet soil illustration…
/expertise/techniques/wet-soil-mixing
Mass mixing
Technique
Mass mixing Mass Soil Mixing (MSM), or mass stabilisation, is a ground improvement technique that improves soft or loose soils, by mechanically mixing them with either wet grout or dry cementitious…
/expertise/techniques/mass-mixing
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Keller at a glance
Resource
Keller at a glance Keller at a glance Flyer Facts and figures about Keller Group Download
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How we work
Landing page
How we work Keller operator working Code of conduct Our business code of conduct sets out the principles and standards of behaviour we expect from all our employees. Our business code of conduct sets…
/how-we-work
Permeation grouting
Technique
Permeation grouting Permeation grouting, also known as cement grouting or pressure grouting, fills cracks or voids in soil and rock and permeates coarse, granular soils with flowable particulate…
/expertise/techniques/permeation-grouting
Vibro compaction
Technique
Vibro compaction 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…
/expertise/techniques/vibro-compaction
Vibro stone columns
Technique
Vibro stone columns 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…
/expertise/techniques/vibro-stone-columns
Dry soil mixing
Technique
Dry soil mixing Dry soil mixing is a ground improvement technique that improves soft, high moisture clays, peats, and other weak soils, by mechanically mixing them with dry cementitious binder. Dry…
/expertise/techniques/dry-soil-mixing
Design and build
Content page
Design and build Keller’s broad product portfolio means our engineers have more options when it comes to an effective and efficient designs for our clients. Following fundamental geotechnical theory…
/expertise/design-and-build
Our work environment
Content page
Our work environment Our people are our most valuable asset. We are committed to creating a work environment and culture that brings out their best and keeps Keller a great place to work. Equal…
/careers/our-work-environment
Dynamic compaction
Technique
Dynamic compaction Dynamic compaction involves the controlled impact of a crane hoisted weight, of around 10-30 tonnes, falling in a pre-determined grid pattern to improve loose, granular soils and…
/expertise/techniques/dynamic-compaction
Rapid impact compaction (RIC)
Technique
Rapid impact compaction (RIC) Rapid impact compaction densifies shallow, granular soils, using a hydraulic hammer, which repeatedly strikes an impact plate on the ground surface. Rapid impact…
/expertise/techniques/rapid-impact-compaction-ric
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 grouting
Technique
Cavity 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 include Sand and…
/expertise/techniques/cavity-grouting
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
Bored piles
Technique
Bored piles 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 As heavy…
/expertise/techniques/bored-piles
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
Industrial
Market
Industrial Keller designs and constructs cost-effective build or design-build geotechnical solutions for the industrial and manufacturing sector. Foundations for industrial plants Sector challenges…
/expertise/markets/industrial