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"Laboratory Calibration of Cone Penetration Testing"

by: Abouzar Sadrekarimi, Department of Civil and Environmental Engineering, Western University

Abstract

Cone penetration testing has become the industry standard for in-situ testing of cohesionless soils and in particular field liquefaction evaluation. The empirical methods for the interpretation of CPT data are either based on field data or the observation of CPT measurements in laboratory samples. A miniature cone penetrometer (with a diameter of 6 mm) is recently developed at Western University for understanding the response of loose sands. A modified triaxial cell is used for sample preparation and containment of the sample during cone penetration. The miniature cone can measure cone tip resistance, sleeve friction and excess pore water pressure developed at the cone shoulder. The application of this reduced-scale calibration chamber cone penetration testing device will be presented for the evaluation of empirical correlations for the prediction of some key geotechnical parameters of loose sands. An extensive evaluation is also presented for the stress normalization process of CPT resistance and its application for identifying soil type. Some of the well-established methods for static liquefaction analysis are also evaluated using the laboratory miniature CPT experiments performed in the current study.

Bio

Dr. Abouzar Sadrekarimi is an Assistant Professor at the Department of Civil and Environmental Engineering of Western University. Dr. Sadrekarimi received his Ph.D. in 2009 in Geotechnical Engineering from the University of Illinois at Urbana-Champaign. Thereafter, he joined Golder Associates (Burnaby, BC) where he was involved with the engineering analysis and design of piles, offshore structures, building foundations, and slopes. Dr. Sadrekarimi’s research interests include soil dynamics and geotechnical earthquake engineering, in-situ soil characterization, advanced soil testing, and consolidation behavior of soft soils and he has over 40 published conferences and journals papers in these areas. Dr. Sadrekarimi has received many awards including the prestigious Ralph B. Peck Fellowship Award, the best student paper award at the GeoCongress 2008 Conference, and the New Madrid Chapter of the Earthquake Engineering Research Institute Award. He was recently awarded the 2015 Young Alumnus Award from the University of Illinois Alumni Association. Dr. Sadrekarimi is a member of the Canadian Geotechnical Society, International Society of Soil Mechanics and Foundation Engineering, and American Society of Civil Engineers (ASCE).

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