1. Ph.D. Student, Dept. of Civil, Geological and Mining Engineering (CGME), Polytechnique Montréal, C.P. 6079, succ. Centre-ville Montréal, QB, Canada H3C 3A7 (corresponding author).
2. Professor, Dept. of Civil, Geological and Mining Engineering, Polytechnique Montréal, C.P. 6079, succ. Centre-ville Montréal, QB, Canada H3C 3A7.