Groundwater treatment
Technique
Groundwater treatment Groundwater or construction water encountered at job sites is often contaminated and must be processed before being discharged to local surface waters, storm sewers, or sanitary…
/expertise/techniques/groundwater-treatment
Mixed modulus columns CMM®
Technique
Mixed modulus columns CMM® Mixed modulus columns (columns with Mixed Moduli, mixed columns, or CMM®) is a ground improvement method using high deformation modulus columns constructed through…
/expertise/techniques/mixed-modulus-columns
Mass soil mixing
Technique
Mass soil mixing Mass soil mixing (MSM), mass mixing, or mass stabilization, is a ground improvement technique that improves soft or loose soils, by mechanically mixing them with either wet grout or…
/expertise/techniques/mass-soil-mixing
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
Anchors
Technique
Anchors Anchors transfer loads using grouted thread bars or strand tendons connected to a structure and bonding into stable soil or rock. Anchors technique illustration Common uses Excavation support…
/expertise/techniques/anchors
Anchor block slope stabilization
Technique
Anchor block slope stabilization Anchor block slope stabilization remediates slopes or existing retaining walls using anchored reaction blocks. Anchor block slope stabilization illustration Common…
/expertise/techniques/anchor-block-slope-stabilization
Soldier piles and lagging
Technique
Soldier piles and lagging Soldier piles and lagging retains soil, using vertical steel piles with horizontal lagging. Whether an open or low headroom site, Keller has the equipment and experience to…
/expertise/techniques/soldier-piles-lagging
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
Slurry cutoff walls
Technique
Slurry cutoff walls Slurry walls create barriers to groundwater inflow or subsurface contaminants. Slurry cutoff walls technique illustration Common uses Create barriers to groundwater flow…
/expertise/techniques/slurry-cutoff-walls
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
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
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
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