1. Research Geotechnical Engineer, Geotechnical and Structures Laboratory, Engineer Research and Development Center, U.S. Army Corps of Engineers, CEERD-GSS, 3909 Halls Ferry Rd., Vicksburg, MS, 39180.
2. Research Civil Engineer, Geotechnical and Structures Laboratory, Engineer Research and Development Center, U.S. Army Corps of Engineers, CEERD-GSS, 3909 Halls Ferry Rd., Vicksburg, MS, 39180.