Influence of backfill soil shear strength parameters on retaining walls stability

Authors

  • Luis A. Lemus Departamento de Ingeniería Civil en Obras Civiles, Universidad de La Serena (Chile).
  • Nelson O. Moraga Departamento de Ingeniería Mecánica, Universidad de La Serena (Chile).
  • Roberto Lemus-Mondaca Departamento de Ciencia de los Alimentos y Tecnología Química Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile.

DOI:

https://doi.org/10.7764/RDLC.16.2.175

Keywords:

Retaining walls, Factor of safety, simulation, Monte Carlo method, reliability analysis

Abstract

One of the problem of geotechnical engineering is the analysis of the retaining walls stability, where are several uncertainty sources. Some of these uncertainties relate to the inherent variability of fill soil, retained by the retaining wall, strength parameters. This feature can be quantified through a retaining wall stability probabilistic analysis using the Monte Carlo Simulation method (SMC), which enables to determine the wall reliability from collected testing shear strength information of existing soils in the cities of Coquimbo and La Serena, Coquimbo Region, Chile. An application example, the study of a cantilever retaining wall stability filled with silty sand soil (SM) with three different degrees of compaction (DC%: 80, 90 and 95%), with the objective to analyze the wall stability through statistical analysis of safety factors.

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Published

2017-08-31

How to Cite

Lemus, L. A., Moraga, N. O., & Lemus-Mondaca, R. (2017). Influence of backfill soil shear strength parameters on retaining walls stability. Revista De La Construcción. Journal of Construction, 16(2), 175–188. https://doi.org/10.7764/RDLC.16.2.175