1. Professor, Dept. of Civil and Environmental Engineering, California State Univ., Fullerton, 800 N State College Blvd., E-419, Fullerton, CA 92834.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, California State Univ., Fullerton, 800 N State College Blvd., E-318, Fullerton, CA 92834 (corresponding author).
3. Project Engineer, Gerhart Cole, Inc., 668 E 12225 S, Suite 203, Draper, UT 84020.
4. Principal, Gerhart Cole, Inc., 668 E 12225 S, Suite 203, Draper, UT 84020.
5. Engineer, Cell Crete Corporation, 135 E Railroad Ave., Monrovia, CA 91016.
6. Geotechnical Engineer, Cell Crete Corporation, 135 E Railroad Ave., Monrovia, CA 91016.