Technologies
Technologies describe how we physically perform the work. These are the construction methods, tools, and processes—such as soil mixing, jet grouting, slurry trenching, dredging, or auger cast piles—that enable our solutions.
Slurry Trenching (Walls)
Slurry trenching refers to a method of installing deep, narrow structures in the subsurface without the need for conventional excavation support or dewatering. The technique relies on a slurry, an engineered fluid that is often bentonite clay mixed with water, to balance the lateral earth pressure of the soils.
Jet Grouting
Jet grouting is a blend of grouting and soil mixing where the soils are mixed with a grout using a high‑pressure fluid stream to create soil‑cement columns or panels. Jet grouting is a great tool for accomplishing stabilization or solidification in tight access areas, when discrete vertical treatment is required, or where there are subsurface or overhead utilities.
Traditional Earthwork
Traditional earthwork refers to excavation, grading, and material handling activities that support construction and remediation. Excavators, dozers, and haul equipment are commonly used in earthwork operations.
Dredging
Dredging refers to the removal of sediments from waterways to support remediation or construction. Dredging can be performed from a barge in the water or from the shoreline.
Auger Cast Piles
Auger cast piles refer to deep foundation elements installed by augering the soils out and grouting the empty hole. Continuous flight auger systems are commonly used to install auger cast piles and the hole is often reinforced with steel in addition to grout.
In-Water Soil Mixing
In‑water soil mixing refers to soil mixing performed on soils or sediments in place beneath a water column. Barge‑mounted soil mixing equipment is commonly used for in‑water soil mixing.
Soil Mixing
Soil mixing refers to various methods used to blend in situ soils with reagents to improve the soil properties relative to the soils alone. Soil mixing can be used to solve a variety of geotechnical and environmental problems.
Polymer Trenching
Polymer trenching refers to trench excavations supported by polymer slurries. Polymer slurries are most commonly used when the resulting trench needs to have a high permeability as opposed to low permeability cutoff walls which are often installed using bentonite slurries.
Auger Excavation (LDA)
Large‑diameter auger excavation refers to a controlled excavation method using oversized augers. LDA systems are commonly used where access is limited preventing the use of a more conventional excavation approach.
sheetpiliing
Sheetpiling refers to the installation of interlocking sheets to retain soil and water. Sheet pile walls can be used for temporary and permanent earth retention.
In-Water Capping
In‑water capping refers to placement of engineered cover systems over contaminated sediments under a water column. Sand and armored caps are commonly used fpr in‑water capping applications.
Vibrated Beam
Vibrated beam refers to cutoff wall construction that relies on a beam inserted into the ground using vibratory insertion methods. After the beam is withdrawn, the cavity is filled with slurry or grout to create a cutoff wall.
Rotary Tool Mixing
Rotary tool mixing refers to mechanical blending of soils and reagents using rotating tools. These tools are typically limited to mixing depths of 15’ to 20’.