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Ray Franz, PE and Francisco Humire, PhD, PE
Deep Soil Mixing (DSM) is a ground improvement technique widely used to enhance slope stability and mitigate liquefaction hazards in seismically active regions. By mechanically blending in-situ soils with cementitious binders, DSM increases shear strength and stiffness, improving overall ground performance during seismic events. In slope stability applications, DSM panels act as structural reinforcing elements, increasing the factor of safety and preventing failure along critical slip surfaces. For liquefaction mitigation, DSM reinforces loose, saturated granular soils, significantly reducing excess pore water pressure buildup during earthquake loading. This presentation summarizes key principles, design considerations, and case histories demonstrating the successful implementation of DSM for both slope stabilization and liquefaction control, and highlighting its versatility and effectiveness in geotechnical earthquake engineering.
Keller North America provides a wide range of geotechnical engineering and construction services to improve soils in place and to both construct new and rehabilitate foundations. The techniques that will be discussed include Compaction & Jet Grouting, Earth Retention and Shoring, Vibro Compaction & Replacement, Micropiles, Soil Mixing for Deep Basement Excavations, and Pile Driving. Within our range of services, a Ground Modification solution is generally available for the toughest subsurface conditions.
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