The current evolution of the foothills and its impact on the instability of road axes in the Southern central of the Rif: "the study of the impact and the evaluation of interventions through the case of a landslide in Btioui bank on the regional road 510a

Abstract

The study of the dynamic forms of the mobility of the Btioui bank’s foothills is important in understanding and analyzing the instability characterizing the road axes in the Moroccan Rif which witnesses a deterioration due to the intensification of the mass movements phenomena. The violent nature of the erosion mechanisms, in the middle Rif areas in particular, is a direct result of the interaction and overlap of natural factorswith the human irrationalexploitation. This simultaneousinteraction in a fragile area has given their geomorphological resultthrough the multiplicity of dynamic methods and their diversity that are reflected on the studied area at the kilometric point 14+00 of the regional road 510 which witnessed intensive intervention by the competent departments for management, but most of these measures ended in failure confirming the limited technical approach to the management of natural hazards