1. Fellow, ASCE
2. Walter P. Murphy Prof. of Civ. Engrg. and Mat. Sci., Northwestern Univ., McCormick School of Engrg. & Appl. Sci., 2145 Sheridan Rd., Evanston, IL 60208. E-mail: z-bazant@northwestern.edu
3. Grad. Res. Asst., Northwestern Univ., 2145 Sheridan Rd., Evanston, IL.
4. Prof., Universidad Politecnica de Cataluyna, Jordi Girona 1–3, Edif. D2, E-08034, Barcelona, Spain; formerly Visiting Scholar, Northwestern Univ., Evanston, IL.
5. Res. Civ. Engr., U.S. Army Engineer Waterways Experiment Station, Geomechanics Div., 3909 Halls Ferry Rd., Vicksburg, MS 39180.