Rigid inclusions (RIs) are high modulus/controlled stiffness grout columns typically installed through weak, highly compressible soils to reduce settlement and increase bearing capacity.
Dynamic compaction uses the energy from a falling weight in a pre-determined grid pattern to improve granular soils and fills.
Rapid impact compaction densifies shallow, granular soils using a hydraulic hammer, which repeatedly strikes an impact plate on the ground surface.
High mobility (cement slurry) grouting, or cement or rock grouting, is usually done in fissured rock to reduce water flow along the joints and discontinuities in the rock. Occasionally, cement grouts are injected into the void space within coarse granular soils.
Low mobility (compaction) grouting involves the injection of a low-slump mortar grout to densify loose, granular soils and stabilize subsurface voids or sinkholes.
Polyurethane grouting involves injecting expanding polyurethane to fill and seal cracks, voids, and re-level slabs.
Driven piles are deep foundation elements installed using impact or vibration hammers to a design depth or resistance.
Franki piles, or pressure-injected footings (PIFS), are high-capacity, cast-in-place elements constructed using a drop weight and casing.
Helical piles, also known as helical piers or screw piles, are constructed using steel shafts with helical flights of various sizes to suit site-specific ground conditions.
A macropile® is an ultra-high-capacity micropile typically drilled in place.
Micropiles (mini piles, pin piles, needle piles, and root piles) are deep foundation elements constructed using high-strength, small-diameter steel casing and/or threaded bars.
Shotcrete can create a natural-looking surface covering sculptured, textured, or stained while wet to blend in with the environment.
Drilled shafts are high-capacity deep foundation systems, also known as drilled piers, caissons, bored piles, or cast-in-drilled-hole piles (CIDH).
Secant or tangent piles are columns constructed adjacent (tangent) or overlapping (secant) to form structural or cutoff walls. From soil mixing to drilled shafts, we draw on our complete suite of techniques to optimize the design and construction of these walls.
Vibro concrete columns involve constructing concrete columns with a bottom-feed, down-hole vibratory probe to transfer loads through weak strata to a firm underlying stratum.
Injection systems involve injecting aqueous solutions into the ground to treat expansive, collapsible, and desiccated clay and railroad subgrade mud pockets.
Vibro stone columns, or vibro replacement, are the construction of dense aggregate columns (stone columns) with a down-hole vibrator suspended from a crane or specially built rig.
Keller delivers practiced displacement piling construction services.
Load bearing elements (LBE), or barrettes, refers to using single or multiple arrangements of rectangular elements to support significant structural loads for structures.
Cutter Soil Mixing (CSM) enhances the engineering properties of soils and reinforces soil masses by mechanically mixing the in situ soils with a binder slurry, typically comprising either cement or bentonite slurry or a combination of the two.
