1. Dept. of Civil, Geological and Mining Engineering, École Polytechnique de Montréal, P.O. Box 6079, Station CV, Montreal, Quebec, CA, H3C 3A7 (Corresponding author), e-mail: dominique.claveau-mallet@polymtl.ca
2. Dept. of Civil, Geological and Mining Engineering, École Polytechnique de Montréal, P.O. Box 6079, Station CV, Montreal, Quebec, CA, H3C 3A7.