L'application des tomographies en résistivité électrique 2D à la l'etude de glissement de terrain dans la region de boulImat (Saket) Bejaïa.

Abstract

The region of Boulimat, Wilaya of Bejaia is part of the small Kabylie of Algeria. The landslide phenomenon affects the study area in several places, specifically the RN24. Factors can trigger this kind of ground movements, be natural and human. The study area is characterized by a very rugged horography, which shows a strong susceptibility to landslide. The Mediterranean climate of the region, with high average annual rainfall (722.6mm) and low to medium temperatures (16.5°C), allows deep soil saturation and creates levels of instability between cohesive soils and soft soils. This is because geophysical and geotechnical studies and the use of 2D electrical tomography have been identified; the presence of three ormations whose first material varies between 0.76 to 5.5 Ohm, the second resistivity material which varies between 5.5 and 35 Ohm, a third resistivity material which is greater than 35 Ohm.m.