CORREIA, F. J. N.; http://lattes.cnpq.br/8061064891772313; CORREIA, Fabrício José Neves.
Resumo:
It is common, in Brazil, especially in rainy periods, the occurrence for landslides, which are
surfaces of the ground that have inclination in relation to the horizontal plane. Such events can
cause fatalities, in addition to financial losses. The population increase, with a consequent
decrease in the useful space for new buildings in urban centers, combined with conditions of
financial vulnerability, end up leading to housing construction in places that are subject to these
occurrences. Currently, there are several methods available to study the stability of soil massifs.
This work aims to analyze the stability of a slope located at Rua João Lourenço, in the city of
Areia-PB, through the use of two different methods of analysis to determine the safety factor
of the structure. We sought to analyze the influences presented on the stability of the slope by
obtaining soil parameters through the SPT and direct shear tests, as well as the use of rigorous
and non-rigorous stability analysis methods. A comparative analysis of the results was carried
out, seeking to identify the possible risk of landslide in the study site, where it was found that
the slope presents instability when it is saturated. In addition, it was observed that for the slope
in question, the type of method used to calculate the stability did not show any influence on the
results, differently from the type of test used to obtain the soil resistance parameters, where
there was influence. The analysis of the results showed that the direct shear test allowed the
obtaining of safety factors representative of the slope, as well as for the use of the friction angle
values obtained by correlations with the SPT result. However, the values obtained from the
undrained resistance (Su) led to unrepresentative safety factors. After verifying the instability
of the embankment, interventions were cited that guarantee the safety of the embankment and,
consequently, of the residents of the locality, such as the execution of earthworks and
construction of containment structures.