Etude d’un glissement de terrain sur la RN75 au PK 02+500 Willaya de Béjaia

Abstract

On Sunday, 01/27/2013, a landslide was manifested at Oumlil village in the municipality of Tala Hamza Bejaia wilaya on the right bank of Wadi Soummam following heavy rains recorded in this period. This shift has led large-scale ollapse of the national road RN75 (PK02 + 500) and took away some of the downstream slope on a length of 250 m and a width of 50m. To this end, and given the urgency of the situation DTP Bejaia urged the BET Technics Council for the stability study mission. According to various data provided by the DTP and BET we could build that slippage has developed in clay and marl soils, plastics, saturated close to saturation, which presents a significant threat to the region. Knowledge of the physical and mechanical characteristics of the soils of the plate allowed stability calculations. Retaining walls of all types will be considered confused in the study of reinforcement object of this PFE to finalize the sliding