1. Post-Doctoral Scholar, Dept. of Civil and Environmental Engineering, Univ. of California, Berkeley, CA 94702.
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Berkeley, CA 94702 (corresponding author).
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Berkeley, CA 94702.
4. Adjunct Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Berkeley, CA 94702.
5. Associate Project Scientist, Center for Geotech. Modeling, Univ. of California, Davis, CA 95616.