Prof. Fratta has extensive background in soil behavior, wave propagation, signal processing, non-destructive evaluation and imaging techniques, including field implementations. Highlights of his experience in related laboratory and field projects include: travel-time and electrical resistivity tomographic imaging of foundation soils, bender element-based process monitoring of soils under changing boundary stresses and suction, rapid methodology for the evaluation of in-situ water content and mass density of soils, monitoring compaction behavior using internal soil deformation and vibration analysis, evaluation of soil stiffness in bases and sub-bases using elastic wave propagation techniques, seismic characterization of embankments, etc. Energy-related applications of his research include geothermal heating and cooling, wind energy foundations, and oil extraction.