Dry soil mixing is a ground improvement technique that improves soft, high-moisture clays, peats, and other weak soils, by mechanically mixing them with a dry cementitious binder to create soilcrete.
Jet Grouting uses high-velocity fluid jets to construct cemented soil of varying geometries in the ground.
Anchors transfer loads using grouted thread bars or strand tendons connected to a structure and bonding into stable soil or rock.
Anchor block slope stabilization remediates slopes or existing retaining walls using anchored reaction blocks.
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 design and construct the optimal solution.
Diaphragm walls are very rigid walls that offer significant resistance to bending from lateral loads and are water-resistant.
Slurry walls create barriers to groundwater inflow or subsurface contaminants.
Sheet piles are steel sheets with interlocking edges that retain soil and are installed using vibratory and vibration-free rigs.
Gabions are rectangular, interconnected, stone-filled wire baskets formed from welded or woven mesh to form an aesthetic retaining wall.
Wet soil mixing, or the deep mixing method, improves the characteristics of weak soils by mechanically mixing them with cementitious binder slurry.
Trench cutting and remixing deep (TRD) soil mix walls are mixed in place using a specialized vertical cutter post mounted on a base crawler machine.
Soil nailing uses grouted, tension-resisting steel elements (nails) to reinforce in situ soils and create a gravity retaining wall for permanent or temporary excavation support.
Compensation grouting, or fracture grouting, is the injection of a cement slurry grout, hydrofracturing soil, and creating lenses. The lenses compact the surrounding soil and lift the overlying soil and structures.
The micropile slide stabilization system (MS3) consists of an array of micropiles, working in tension and compression, that connect as a system using a structurally reinforced grade beam to stop slide movements.
CFA / ACIP piles (continuous flight auger piles, auger cast piles, or augered cast-in-place piles) are cast-in-place piles using a hollow stem auger with continuous flights.
Permeation grouting (cement grouting, chemical grouting, or pressure grouting) fills cracks or voids in soil and rock, permeating granular soils with flowable grouts to create a cemented mass.
Vibro compaction is a ground improvement technique that densifies clean, cohesionless granular soils with a downhole vibrator. It is a technique first developed by Keller in the 1930s that has been used on thousands of projects since.
Vibro piers® (also known as aggregate piers) are stiff aggregate piers constructed to reinforce fine-grained soils. Our company founder, Johann Keller, developed this technique, which has been used on thousands of projects since.
Wick drains, or prefabricated vertical drains (PVD), are prefabricated geotextile filter-wrapped plastic strips with molded channels. These act as drainage paths to take pore water out of soft compressible soil so it consolidates faster, often from decades to months.
The earthquake drain ground improvement method minimizes bearing capacity failures and settlement during and immediately after a seismic event. It mitigates liquefaction by limiting excess pore pressures generated during seismic events to levels less than those that could trigger liquefaction.…
