Estudo de diferentes métodos de análises de estabilidade de taludes terrosos

Abstract

Due to the importance of the works on the ground in civil engineering as an example in construction (roads, railways, pipelines, dams, etc.), as well as works to the side of restraint. In works on land are common the presence of slopes, whether artificial or natural. The example of the former: embankments in earthworks in flatwork, embankments built at the opening of roads, embankments at dams, like the second: natural slopes. The factors that affect the stability of the calculation are: cohesion, friction angle, specific weight, normal soil stress, the presence of water and slope gradient. In this study, data were obtained empirically by correlating six NSPT. The study area is located in the city of Porto Alegre-RS, local soil conditions are classified as red clay and yellow vermelhos- argilossolos and Planosols hydromorphic association. Data processing was carried out in the Geo Studio Geoslope program, the methods used to calculate the stability were Bishp, Fellenius, Spencer and Janbu, the calculation of stability was conducted with cohesion and no cohesion in both cases was varied slopes with values 60, 30 and 27 degrees, the best situation encountered was with the inclination of 27 degrees and with the presence of cohesion situation calculated by Janbu method presented a more conservative safety factor through the results it is clear the importance of cohesion, increasing the safety factor for all the slopes.