Alternativas de baixo custo para estabilização de taludes em áreas de risco e estudo de caso na Comunidade do Roger, em João Pessoa - PB

Abstract

The mass movements, increasingly recurrent in many Brazilian cities, represent a problem of great concern to society in general, in view of the risks, losses and consequences involved. Its occurrence, for the most part, is a reflection of the way space is occupied by the population, with the occupation of always adequate and without the necessary infrastructure to meet it, aggravated by factors natural resources. The result is the emergence of risk areas at various points in cities, mainly in the regions of hills and near water courses and the occurrence of countless disasters. The city of João Pessoa lives the problem of a disorderly occupation of their rugged relief areas which, in rainfall regimes, have the incidence of mass movements. In this context, the need for solutions to these problems arises, mainly because of the urgency. Faced with the scarcity of resources, financial resources, available for the construction of reinforcement and stabilization structures of slopes, the adoption of intervention measures by public managers becomes a challenge. This one In addition to mass movement as a phenomenon and related approaches to stabilizing slopes in risk areas (such as bagged soil-retaining wall, tire wall, wall of gabions, among others), with the a case study of a slope located in the community of Roger, in João Pessoa-PB. THE geological-geotechnical analysis, it was verified that the present situation of the embankment, characteristics of the material, make the slope very vulnerable to the occurrence of mass movement. The value of the Safety Factor associated with the stability of the object slope of the study is very close to the limit for occurrence of mass movement. The value of F.S = 1.063 shows that the slope is in the imminence of a collapse. In this sense, it was suggested adoption of alternatives of bagged soil-cement wall and gabion wall to the site, alternatives that present, in addition to the low cost, other advantages that can guarantee the stability and avoid future disasters.