Ground Improvement

When the soil on a project site cannot support the loads of a shallow foundation and a deep foundation is not an option, ground improvement to increase strength, reduce compressibility, and enhance performance under applied loadings may be required. GEI's expertise in ground improvement includes:

• Vibro stone solumns
• Rammed aggregate piers
• Grouting
• Soil mixing
• Dynamic compaction
• Controlled Modulus Columns™

Our geotechnical engineers are recognized national leaders in the use of Controlled Modulus Columns™ through our affiliation with DGI-Menard, Inc. These columns are drilled with a specially designed auger powered by equipment with large torque capacity and high static down thrust to displace soil laterally with virtually no spoil or vibration. When the auger is extracted, a column is developed by pressure-grouting to achieve a predetermined stiffness ratio with the surrounding soil. The result is a composite soil/cement ground improvement system used to support slabs-on-grade, isolated footings, and embankments on compressible clays, fills, and organic soils.