Towards geotechnical site characterization, seismic piezocone penetration testing (SCPTu) offers up to five separate measurements with depths from a single sounding: cone tip resistance (qt), sleeve friction (fs), porewater pressure (u2), time rate dissipation (t50), and shear wave velocity (Vs). Thus it is an expedient and economical means for obtaining stratification of the ground and the determination of a variety of soil engineering parameters for analysis and design, including nonlinear stress-strain-strength curves for clays and sands. Calibration and documentation of selected geoparameters are presented with statistical datasets. Moreover, direct CPT methodologies have been developed for application to shallow footings, piling foundations, and seismic liquefaction evaluation. Case studies are presented to show the utilization of SCPTu in geotechnics.

Bio: Paul Mayne. P.E., PhD, a professor of Civil & Environmental Engineering at the Georgia Institute of Technology, has been selected as the 2018-2019 Cross-USA Lecturer for the Geo-Institute of the American Society of Civil Engineers. With 42 years in geotechnical engineering, Prof. Mayne is an expert in geotechnical site characterization, particularly the cone penetrometer, piezocone, dilatometer, and seismic tests with applications to foundation systems and ground modification. He has published 320 technical papers and participated in 120 short courses.