Análise de um escorregamento ocorrido em um talude na Via Lagos.

Abstract

The present work aims at understanding a landslide occurred on a slope at km 15 +700 of Highway RJ - 124 - Via Lagos , Rio Bonito - RJ . After the move of the slope , some measures were taken to stabilize the slope. However , the changes have not ceased , raising the need for a more detailed study of the local geology . Geophysical surveys and mixed traces were performed , aiming to define a geological and geotechnical profile. Additionally , the assay was performed direct shear laboratory to obtain parameters of resistance . with samples taken from the site and installed instrumentation consists of inclinometers and water level gauges and piezometers . Realisada was also a numerical modeling with the help of the Plaxis program where we used the geotechnical parameters obtained in the laboratory test alert by direct cilhamento the objective of the analysis was to confront the displacement of the slope obtained in the analysis of the displacement resgistrado by inclinômetria . The present study also realisada backcalculation as one main objective which we obtained the parameters of resistance of the material involved to slip to the situation where FS = 1 , where we considered the high water level and d' condition Normal with the water level in your actual situation determined the FS so that the slope remains estável.O - work addresses possible causes of instability and movement of the slope , proposing a simpler alternative stabilization , based on the interaction between geology and Geotechnics.