RETROANÁLISE EM TALUDE RODOVIÁRIO - ESTUDO DE CASO: Talude localizado no km 758+500 pista norte da Rodovia Fernão Dias (BR 381)

Abstract

This work is a detailed study of a section slope, located on the Fernão Dias highway. Due to severe weather, the slope under study suffered a series of landslides over four consecutive years, leading to a large erosion. To recover from this erosion it was necessary, during the design of the retaining structure, ie its stabilization design, to determine the equivalent average slope parameters at the moment of rupture. To determine the parameters, an alternative and inexpensive way is the use of back analysis techniques, where the soil resistance parameters that satisfy the condition of F.S = 1.0 are chosen. This technique is performed empirically, where for this work it was based on the fixing of the friction angle and specific weight values ​​and the estimation of the cohesion valleys of the materials involved. The results, as well as all methodology from geometry to final results, will be presented and commented throughout this work.