Analysis of Landslides In the Region of Souk Ahras (Zaarouria Sector) North- east of Algeria Using pseudo-static method

The increasing development in the region of Souk Ahras (Algeria) is more and more threatened by several landslides, i.e. mass movements of materials. Sustainability of structures and in particular roads are threatened by this widespread phenomenon in the region. Landslides cause significant damage and casualties to people and property. Practical observations of the lands in movement can establish a correlation between geological, hydrogeological conditions and the landslide phenomenon. In this study, the main objective is to combine geology with soil mechanics in order to study causes of landslides in three important sectors (Mechroha, Zaarouria, Hammam Tassa) all over the wilaya of Souk Ahras territory. In addition, we study particular landslide in sector of (Zaarouria) by modeling the mechanical behavior of the field using numerical calculations and discuss the influence of pore water pressure variation on the safety factor. Finally, the resulting model will experience the use of pseudo- static method to perceive the influence of seismicity on safety factor.