Geotechnical Engineering Research Laboratory Samuel G. Paikowsky, Sc.D. One University Avenue Professor Lowell, Massachusetts 01854 Tel: (978) 934-2277 Fax: (978) 934-3046 e-mail: Samuel_Paikowsky@uml.edu web site: http://geores.caeds.eng.uml.edu DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING COMPARISON BETWEEN MODEL AND FULL SCALE PILE CAPACITY GAIN IN THE BOSTON AREA Samuel G. Paikowsky, Edward L. Hajduk and Leo J. Hart Invited lecture and paper, in the ASCE GI conference, Geo-Frontiers 2005, Advances in Deep Foundations – In memory of M.W. O’Neill Austin, TX, January 24-26, 2005, ASCE GSP 132, CD-ROM.