1. Department of Civil Engineering, University of Tiaret, Tiaret, Algeria;
2. Laboratoire de Géomatique et Développement Durable, University of Tiaret, Tiaret, Algeria;
3. Laboratoire Navier -Geotechnique, Ecole des Ponts ParisTech, Paris, France;
4. Department of Civil Engineering, Saâd Dahleb University, Blida, Algeria