The effects of dam-reservoir interaction on the nonlinear seismic response of earth dams

Loizos Pelecanos, Stavroula Kontoe, Lidija Zdravkovic

Research output: Contribution to journalArticle

6 Citations (Scopus)
107 Downloads (Pure)

Abstract

The objective of this study is to investigate the effects of dam–reservoir interaction (DRI) on the nonlinear seismic response of earth dams. Although DRI effects have for long been considered as insignificant for earth dams, that conclusion was mainly based on linear elastic investigations which focused only on the acceleration response of the crest without examining the seismic shear stresses and strains within the dam body. The present study explores further the impact of DRI focusing on the nonlinear behavior of earth dams. The effects of reservoir hydrodynamic pressures are investigated in terms of both seismic dam accelerations and nonlinear dynamic soil behavior (seismic shear stresses and strains). It is shown that although dam crest accelerations are indeed insensitive to DRI, the stress and strain development within the dam body can be significantly underestimated if DRI is ignored.

Original languageEnglish
Pages (from-to)1034-1056
Number of pages23
JournalJournal of Earthquake Engineering
Volume24
Issue number6
Early online date19 Apr 2018
DOIs
Publication statusPublished - 2020

Keywords

  • Earth dam
  • Reservoir
  • dam-reservoir interaction
  • dynamic analysis
  • earthquake
  • finite elements

ASJC Scopus subject areas

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

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