Sheet piles
Technique
Sheet piles Sheet piles are steel sheets with interlocking edges that retain soil and are installed using vibratory and vibration-free rigs. Sheet piles technique illustration Common uses Support…
/expertise/techniques/sheet-piles
Gabion systems
Technique
Gabion systems Gabions are rectangular, interconnected, stone-filled wire baskets formed from welded or woven mesh to form an aesthetic retaining wall. Gabion systems icon Common uses Temporary or…
/expertise/techniques/gabion-systems
Rock / fissure grouting
Technique
Rock / fissure grouting Rock/fissure grouting is the injection of high-mobility grout into apertures, joints, and/or voids in rock or soil to create a seepage barrier or stabilize the mass. Rock/…
/expertise/techniques/rock-fissure-grouting
Vibro (aggregate) piers®
Technique
Vibro (aggregate) piers® Vibro piers® (also known as aggregate piers) are stiff aggregate piers constructed to reinforce fine-grained soils. Keller developed this technique, and it has since been…
/expertise/techniques/vibro-aggregate-piers
Jet grouting
Technique
Jet grouting Jet Grouting uses high-velocity fluid jets to construct cemented soil of varying geometries in the ground. Jet grouting technique illustration Common uses Control of groundwater or…
/expertise/techniques/jet-grouting
Dewatering
Technique
Dewatering Construction dewatering, the temporary lowering of the groundwater, has been practiced by Keller for more than 90 years, and we are recognized as the industry's preeminent dewatering…
/expertise/techniques/dewatering
Diaphragm walls
Technique
Diaphragm walls Diaphragm walls are very rigid walls that offer significant resistance to bending from lateral loads and are water-resistant. Diaphragm walls technique illustration Common uses Slope…
/expertise/techniques/diaphragm-walls
Displacement piles
Technique
Displacement piles Keller delivers practiced displacement piling construction services. Displacement CFA piles technique illustration Common uses Structural support Ground improvement Process…
/expertise/techniques/displacement-piles
Jacked piles
Technique
Jacked piles Jacked piles or jacked piers are constructed using small-diameter steel pipes advanced to bearing depth by hydraulic jacks secured to the existing structure being underpinned. Jacked in…
/expertise/techniques/jacked-piles
Shotcrete
Technique
Shotcrete Shotcrete can create a natural-looking surface covering sculptured, textured, or stained while wet to blend in with the environment. Sculpted shotcrete technique illustration Common uses…
/expertise/techniques/shotcrete
Trenched soil mix walls
Technique
Trenched soil mix walls Trenched soil mix walls are mixed in place using a specialized vertical cutter post that is mounted on a base crawler machine. TRD soil mix walls technique illustration Common…
/expertise/techniques/trenched-soil-mix-walls
Vibro replacement (stone columns)
Technique
Vibro replacement (stone columns) Vibro replacement, or vibro stone columns, are the construction of dense aggregate columns with a down-hole vibrator suspended from a crane or specially built rig.…
/expertise/techniques/vibro-stone-columns
Wick drains (PVDs)
Technique
Wick drains (PVDs) Wick drains, or prefabricated vertical drains (PVDs), are prefabricated geotextile filter-wrapped plastic strips with molded channels. These act as drainage paths to take pore…
/expertise/techniques/wick-drains
Ground freezing
Technique
Ground freezing Artificial ground freezing converts in situ pore water to ice through the circulation of a chilled liquid via a system of small-diameter pipes placed in drilled holes. Ground freezing…
/expertise/techniques/ground-freezing