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Keller is able to offer solutions to various geotechnical problems by applying different ground improvement techniques.
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Vibro Compaction is a method of densifying granular soils using a depth vibrator. The effect is enhanced shear strength and stiffness.
Vibro Replacement is the installation of stone columns in clayey or silty soils using a depth vibrator. The improved soil matrix has higher shear strength and stiffness. In addition, the stone columns function as large diameter drains for rapid consolidation.
Deep Soil Mixing involves the mixing of soft soils with a binder, typically cement and/or lime, by mechanical means. This treatment results in higher shear strength and stiffness.
Compaction Grouting is a technique that creates grout bulbs by injecting a stiff grout into the soil. This grout bulb displaces and compacts the in-situ soil.
Jet Grouting utilizes a fluid jet (air, water and/or grout) to erode and mix the in-situ soft or loose soils with grout. The result is significantly increased shear strength and stiffness. In sandy soils, permeability can be reduced to control water flow.
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