Strengthening Soil for Lasting Stability

Advanced In-Situ Soil-Cement Mixing for Stronger, More Impermeable Ground.

As one of the nation’s premier design-build Geostructural Design & Construction contractors, Schnabel delivers advanced soil mixing solutions that improve soil strength, reduce permeability, and create durable earth-retention systems.

Whatever the environment, whatever your operational challenges—Schnabel has the expertise to provide the right soil mixing solution for your project.

How Soil Mixing Works

Proper soil mixing is an essential step in creating durable earth-retention solutions. When done correctly, the mixing process yields a soil-cement mixture that has both increased strength and reduced permeability.

One application for soil mixing is in the construction of earth-retaining structures where a groundwater cut-off is also required. Schnabel typically drills a series of overlapping soil-cement columns to create a continuous groundwater cutoff wall.

Steel piles are typically placed in the soil-cement while it is still wet to improve its strength. The increased strength of the treated ground allows it to span between the piles. The reduced permeability of a soil mix wall allows the excavation to take place under relatively dry conditions with limited draw down of the water table outside the excavation.

Soil mixing can also be used to create an impermeable barrier below the ground surface where no excavation takes place, such as to reduce seepage through a dam or to contain contaminated groundwater. Another use for soil mixing is the improvement of foundation soils to increase their strength and reduce the likelihood of liquefaction during an earthquake.

Our Services Include:

Groundwater Cut-Off Walls

Groundwater Cut-Off Walls

Continuous soil-cement columns that control water infiltration during excavation.

Strength Enhancement

Strength Enhancement

Improved bearing capacity for deep foundations and reduced settlement risks.

Environmental Containment

Environmental Containment

Subsurface barriers that prevent seepage through dams or stop the spread of contaminants.

Seismic Resilience

Seismic Resilience

Stabilizing soils to reduce liquefaction risk during earthquakes.

Need a soil mixing solution customized for your project?

Why Schnabel?

Schnabel is one of the nation’s premier soil mixing contractors, with decades of proven experience in challenging environments. Our design-build approach ensures every solution is optimized for strength, safety, and performance.

Real-World Results in Soil Mixing

Projects Schnabel Has Worked On

Here are some projects where Schnabel’s soil mixing solutions played a key role:

Centro West Block

Location:

Austin, TX

Client:

Harvey Cleary Builders

Background

Schnabel was contracted to design and construct a shoring system essential for building an underground parking garage. The sandy soil conditions created a need for enhanced ground stability during excavation.

Schnabel’s Solution

Schnabel implemented a system that incorporated soil mixing between soldier beams, which effectively improved ground stability and prevented cave-ins throughout the excavation process.

Results

The shoring system provided reliable excavation support, enabling safe and efficient construction of the underground garage.

Waldo’s Old Fourth Ward

Location:

City, State

Client:

Shell McElroy

Background

Schnabel was contracted to design and install a temporary soil-mixed cut-off wall system for the Waldo’s Old Fourth Ward project.

Schnabel’s Solution

The soil-mixed wall was constructed around the entire perimeter of the site, extending approximately 1,100 feet in length with an exposed height ranging from 20 to 32 feet.

Results

The system successfully provided excavation support, facilitating the construction of a mixed-use development in the Old Fourth Ward neighborhood.

Ready for a stronger, more stable foundation?

Partner with Schnabel for soil mixing solutions engineered for performance and reliability.

Key Contacts:

David Vega Sanchez | PM, Pre-Con

Key Contacts:

German Varon | Sr. PM, Pre-Con

Ernie Brandl | Sr. PM, Pre-Con

Key Contacts:

Ryan Whaley | Sr. PM, Pre-Con

Kristopher Knier | Sr. PM, Pre-Con

Brendan Sheppard | Sr. PM, Pre-Con

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Claus Ludwig | Sr. PM, Pre-Con

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Mark Goudschaal | Sr. PM, Pre-Con

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Sue Wright | Sr. PM, Pre-Con

Harold Gathers | Sr. PM, Pre-Con

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Sixto Fernandez | Mid-Atlantic Area Manager

Rich Pratt | Sr. PM, Pre-Con

Taylor Youngwood | PM, Pre-Con

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Josh Fallon | Sr. PM, Pre-Con

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Michael Patzek | Business Development Manager