1. Graduate Research Assistant, Zachry Dept. of Civil Engineering, Texas A&M Univ., College Station, TX 77843 (corresponding author).
2. Associate Professor, Civil, Arquitectural and Environmental Engineering, Univ. of Texas at Austin, Austin, TX 78712.
3. Assistant Professor, Dept. of Civil Engineering, Univ. of Idaho, Moscow, ID 83844.
4. Snead Chair Professor and Regents Professor, Zachry Dept. of Civil Engineering, Texas A&M Univ., College Station, TX 77843.
5. Professor, Geology and Geophysics, Texas A&M Univ., College Station, TX 77843.
6. Vice Dean, Texas A&M Univ. at Qatar, Doha, Qatar.