Numerical study of slope stability in an anchored wall in Belo Horizonte, Brazil.

Abstract

The present work presents a study on an emergency containment work carried out on one of the main avenues of the capital of Minas Gerais in the year 2018. This structure comprises a curtain anchored by rods installed on a containment of the same nature that was instated as a function of corrosion in the head of the rods due to saturation of the slope. The stability of the problem was analyzed by means of the rigorous equilibrium-limit method (Morgenstern-Price), with the help of GeoStudio 2019 software, SLOPE/W module. Through modeling using finite elements in the Sigma module of GeoStudio, A 2D strain study was carried out for the following "In Situ" scenarios (before reinforcement rods and after the application of the new reinforcement lines). Additionally, the Elastoplastic model was considered representative of the Geotechnical massif. In general, the study returned a significant increase in the safety factor of the slope conferred by the anchored wall and acceptable horizontal displacements, of the order of 1, 5cm