University of California, Berkeley, Department of Civil and Environmental Engineering, 760 Davis Hall, Berkeley, CA 94720-1710, United States
University of California, Berkeley, Department of Civil and Environmental Engineering, 760 Davis Hall, Berkeley, CA 94720-1710, United States
Department of Geology and Geologic Engineering, Colorado School of Mines, 1500 Illinois St., Golden, CO 80401-1887, United States ; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94551, United States