Three-dimensional seismic active earth pressure coefficients using upper bound numerical limit analysis

A few preliminary results

Research output: Contribution to conferencePaper

Abstract

The finite element program Sublim3D, which is a three-dimensional numerical implementation of the limit analysis upper bound theorem, is applied to determine seismic active horizontal earth pressure coefficients, using the equivalent static forces approach to simulate the seismic effect. The calculations are performed for different width/height ratios of the wall, different seismic horizontal coefficients, two representative values of the friction angle and two values of the soil-To-wall friction ratio. The threedimensional influence on the seismic active earth pressures is emphasized. The mechanisms involved in the mobilization of the active earth pressures are inferred from the plastic deformation zones determined by the calculations. The ratios between the threedimensional and two-dimensional seismic horizontal earth pressure coefficients are obtained and found to be, in practical terms, independent on the soil-To-wall friction ratio.

Original languageEnglish
Pages1579-1582
Number of pages4
Publication statusPublished - 1 Jan 2013
Event18th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2013 - Paris, France
Duration: 2 Sep 20136 Sep 2013

Conference

Conference18th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2013
CountryFrance
CityParis
Period2/09/136/09/13

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Keywords

  • Finite elements
  • Three-dimensional seismic active earth pressure coefficients
  • Upper bound limit analysis

Cite this

Santana, T., Guerra, N. M. C., Antão, A. N., & Vicente, D. S. M. (2013). Three-dimensional seismic active earth pressure coefficients using upper bound numerical limit analysis: A few preliminary results. 1579-1582. Paper presented at 18th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2013, Paris, France.