Evaluation of the stability of a highway slope through numerical modeling

Mass movement in natural slopes can cause great material and human loss for society. In this context, stability analyses become quite complex since there are a large number of uncertainties involved in the interpretation of the problem. This paper presents an analysis of the stability of a highway s...

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Autores:
Marques, Gabriel Steluti
Lukiantchuki, Juliana Azoia
Tipo de recurso:
Article of journal
Fecha de publicación:
2017
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/60425
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/60425
http://bdigital.unal.edu.co/58757/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
slope stability
numerical modeling
probabilistic analysis
estabilidad de talud
análisis numérico
análisis probabilístico
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:Mass movement in natural slopes can cause great material and human loss for society. In this context, stability analyses become quite complex since there are a large number of uncertainties involved in the interpretation of the problem. This paper presents an analysis of the stability of a highway slope, located near the city of Guarulhos, in São Paulo, Brazil. The shear strength parameters of the soil and the stratigraphic profile were defined based on the results of Standard Penetration Tests (SPT). The initial factor of safety was below the minimum value recommended by the Brazilian technical standards, but did not indicate imminent failure. However, additional analyses which incorporated the influence of critical periods of rain and probabilistic analysis indicated that the stability of the section was unsatisfactory. Therefore, numerical modeling is shown to be a complex and effective tool for implementation of conventional analyses of slope stability.