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Ingeniería sísmica

versão impressa ISSN 0185-092X

Resumo

MESA LAVISTA, Milena; ALVAREZ PEREZ, José  e  CHAVEZ GOMEZ, Jorge H.. Safety factor evaluation in high embankment roads slopes considering a seismic load. Ing. sísm [online]. 2020, n.103, pp.1-17.  Epub 02-Fev-2021. ISSN 0185-092X.  https://doi.org/10.18867/ris.103.489.

When a road embankment is built, the safety factor is analyzed as one of the most important variables in the design; since it is necessary that slopes are safe and stable. In most cases, a static analysis is used for design purposes. This paper presents results of a study on the seismic behavior of the safety factor of slopes, in high road embankments under seismic action. An experimental design 32 was performed for this study. In the experimental design, three different embankment heights were considered and the level of seismicity was varied through accelerograms from the design spectrum bearing in mind the parameter of the section 3.1 of the “Manual de diseño de obras civiles de la comisión federal de electricidad” of Mexico. To obtain the results, the finite element method (FEM) and the Newmark method were employed by the software Geo-Studio; using the sub-modulus QUAKE/W for dynamic analysis, and the sub-modulus SLOPE/W for stability analysis. The results shown the necessity to review these structures in high intensity seismic regions for embankments higher than 12 m.

Palavras-chave : safety factor; slope stability; high embankments; seismic load.

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