The How and Why of Soil Mixing and Stabilization Techniques

The How and Why of Soil Mixing and Stabilization Techniques

There are a variety of reasons that deep soil mixing and stabilization techniques are needed in a particular area. These may include contamination, structural necessities or other enhancement issues. As technology has developed, it has become easier for problems of this nature to be addressed in an efficient manner. Soil engineers and environmental specialists are usually consulted before any work begins, but more and more this type of activity is being used to help supplement planned projects. The main idea is that the entire project becomes a whole lot easier to manage by first improving upon the ground under consideration for development.

The Basics of Soil mixing

Soil mixing is the use of a binder to achieve a much better compressive strength. This method can be used with both cohesionless and cohesive soil type, although the former is much easier to work with. Ground in need to treatment is combined with a slurry of a cement-like substance in order to create a better quality of soil. This can also mean greater permeability and the increased capture of contaminants. This can then be excavated and replaced with better quality dirt.

The Machines that Make Deep Soil Mixing Possible

Large machines called augers bore a hole into the earth for delivery of the reagent. Giant paddles then stir up the entire load, creating a more uniform blend of materials. There is no one solution for any area, so the amount of additives will vary in proportion to the desired consistency. The other issue is how deep the treatment needs to be. At this time, depths of approximately 100 feet have been successfully completed.

Many times, the soil has to undergo stabilization techniques in addition to the mixing process. This is intended to improve properties and engineering characteristics of an area. It is most often used to treat a contaminated area. The additive choice here is Portland cement as it help to bind up toxic materials, making the soil less permeable with a greater compressive strength. By using the proper combination of elements here, the ground can be taken out and used in a landfill or possibly reused on-site for greater development. As an added bonus, the structural properties of this area are greatly increased as well.

Benefits of Soil Mixing

By combining soil mixing and stabilization techniques, scientists are able to reclaim land that was deemed unusable. This conservation of natural resources, is one of the primary forces driving the current "green" movement and should flourish with proper attention.

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