1. Geotechnical Research Group, Dept. of Civil and Environmental Engineering, Univ. of Brasilia, Brasilia, DF, BR
2. Campus Universitário Darcy Ribeiro, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental – ENC, Asa Norte, 70910-900 Brasilia, DF, BR, e-mail: muniz@unb.br
3. These authors contributed equally to this work
4. Campus Universitário Darcy Ribeiro, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental – ENC, Asa Norte, 70910-900 Brasilia, DF, BR (Corresponding author), e-mail: mallano@unb.br