Analysis of pore pressure generation and dissipation in cohesionless materials during seismic loading

A. Pecker, J. H. Prevost, L. Dormieuxcermmo

Research output: Contribution to journalArticle

Abstract

The earthquake loading of a shallow foundation resting on top of a cohesionless layer creates cyclic variations in the shear force and overturning moment acting on the supporting soil. These loads induce a tendency for volume change which, in turn, depending on the drainage conditions and material permeability, may cause in addition to a cyclic pore pressure variation a progressive pore pressure buildup. The paper develops an efficient and elegant way, based on a multiple time scale analysis, of solving this fully coupled problem. The theoretical solution is implemented in a finite element code and is applied to predict the pore pressure development and dissipation under a bridge pier foundation for which it was essential to limit the pore pressure increase.

Original languageEnglish (US)
Pages (from-to)441-464
Number of pages24
JournalJournal of Earthquake Engineering
Volume5
Issue number4
DOIs
StatePublished - Jan 1 2001

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Keywords

  • Cohesionless material
  • Coupled problem
  • Earthquake loading
  • Pore pressure

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