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-mixing Common…
/en/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…
/en/expertise/techniques/mass-mixing
Soil nails
Technique
Soil nails Soil nailing uses grouted, tension-resisting steel elements (nails) to reinforce in situ soils and creating a gravity retaining wall for permanent or temporary excavation support. soil-…
/en/expertise/techniques/soil-nails
Compensation / fracture grouting
Technique
Compensation / fracture grouting Compensation or fracture grouting is the injection of a cement slurry grout into the soil creating and filling fractures that then lift the overlying soil and…
/en/expertise/techniques/compensation-fracture-grouting
CFA piles (auger cast)
Technique
CFA piles (auger cast) Continuous flight auger (CFA) piles are a type of bored cast-in-place replacement pile. Piles are drilled and concreted in one continuous operation enabling much faster…
/en/expertise/techniques/cfa-piles-auger-cast
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…
/en/expertise/techniques/permeation-grouting
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-…
/en/expertise/techniques/dry-soil-mixing
Wick / PVDs / band drains
Technique
Wick / PVDs / band drains Wick drains, also known as Prefabricated Vertical Drains (PVD) are prefabricated geotextile filter-wrapped plastic strips with molded channels. These act as drainage paths…
/en/expertise/techniques/wick-pvds-band-drains
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…
/en/expertise/techniques/dynamic-compaction
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. fissure-grouting Common uses Reduce conductivity/…
/en/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-…
/en/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…
/en/expertise/techniques/cavity-bulk-mine-fill-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-cast-insitu Common uses Can be used for all types of…
/en/expertise/techniques/driven-precast-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…
/en/expertise/techniques/ductile-iron-piles
Macropiles
Technique
Macropiles A macropile® is an ultra-high capacity micropile, with high strength grout, steel reinforcement, and increased diameter over 300mm. Keller rigs demonstrating macropile technique Common…
/en/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…
/en/expertise/techniques/micropiles
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 Common uses As heavy…
/en/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…
/en/expertise/techniques/secant-pile-walls
Jet grouting
Technique
Jet grouting Jet grouting uses high velocity fluid jets to construct cemented soil of varying geometries in the ground. jet-grouting Common uses Often the preferred solution in any situation…
/en/expertise/techniques/jet-grouting
Ground anchors
Technique
Ground anchors Ground anchors transfer tensile loads and consist of an anchor head, a free length and a bond length. The free length enables the anchor to be, a big advantage for excavation pits with…
/en/expertise/techniques/ground-anchors