1. Ph.D. Student, Dept. of Civil Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India.
2. Ph.D. Student, Laboratoire Navier (ENPC-IFSTTAR-CNRS), Univ. of Paris-Est, 2 Allee Kepler, Champs sur Marne 77420, France.
3. Professor, Laboratoire Navier (ENPC-IFSTTAR-CNRS), Univ. of Paris-Est, 2 Allee Kepler, Champs sur Marne 77420, France.
4. Institute Chair Professor, Dept. of Civil Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India (corresponding author).