Shallow Soil Mixing

A derivative of the DSM technique, SSM was developed by Geo-Con to provide cost effective foundation systems for geotechnical, civil applications. Columns can be arranged in-situ up to 35-40 feet, into gravity retaining walls or mat foundations.

The SSM system uses a single, large-diameter (2 to 4 m) mixing auger which, by benefit of scale, provides the most economical system available. Although technically feasible to greater depths and larger diameters, torque limitations and soil consistency usually limit application depths to about 12 m. SSM, like DSM, uses a crane-mounted mixing system with reagents fed into a mixing auger as the auger penetrates the soil.

Additives and reagents, typically mixed at the batch plant, can be transferred pneumatically, or pumped. Reagents are volumetrically measured to allow the correct proportions to be mixed with the soil. The mixing augers advance through the total depth of the soil in an up and down motion. Upon completion of a mixed soil column, the auger is repositioned to overlap the previous soil column and the process is repeated.

Prior Projects:

• Subsurface Soil-Improvement, Using Shallow Soil Mixing - Honolulu, Hawaii

• Soil Bentonite Slurry Wall, Home Depot - Seminole, Florida

• Soil-Mixed Temporary Retention Wall - Northeastern Ohio Client

• Hydra0Mech Soil Mixing, Support Excavation - Coudersport, Pennsylvania