SGER: Soil Solidification by Magnetorheological Fluids

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The potential usage of magnetorheological fluids (MRFs) for temporary in-situsolidification of coarse-grained soils is being investigated. Should magnetorheologicalmaterials be successfully introduced into the pore space of a soil and solidified byapplication of a magnetic field, they could significantly improve our ability to samplesaturated or dry cohesionless soils with minimum disturbance. The cost savings overpore fluid freezing could be very significant. Other potential future applications of MRFsin geotechnical engineering may include: stabilization of soil for excavation andtunneling, control of seepage and contaminant migration, liquefaction hazard reduction,control of machine vibrations, soil surcharging to accelerate pre-construction settlementand others. The present exploratory laboratory program will include tests for hydraulicconductivity, stiffness, strength, volume change susceptibility due to vibration, andstability of open cuts in MRF-stabilized soils.