Soil Strength and Slope Stability

J. Michael Duncan is University Distinguished Professor of Civil and Environmental Engineering and Director of the Center for Geotechnical Practice and Research (CGPR) at Virginia Polytechnic Institute and State University in Blacksburg.

Stephen G. Wright is Brunswick-Abernathy Regents Professor in Soil Dynamics and Geotechnical Engineering in the Department of Civil Engineering at the University of Texas at Austin.