Seismic performance of earth structures during the February 2010 Maule, Chile, earthquake: Dams, levees, tailings dams, and retaining walls

Ramon Verdugo, Nicholas Sitar, J. David Frost, Jonathan D. Bray, Gabriel Candia, Terry Eldridge, Youssef Hashash, Scott M. Olson, Alfredo Urzua

Research output: Contribution to journalArticlepeer-review

Abstract

The 27 February 2010 Maule, Chile, earthquake occurred during the driest time of the year, which implied that most of the soils in the slopes were not saturated and that the dams had extra freeboard. This may explain the small number of slope failures caused by the earthquake. However, two important earth dams suffered seismically induced permanent ground movements, but no catastrophic damage was reported because the reservoirs levels were low. Five medium-sized mine tailings dams failed due to liquefaction; one of them tragically caused four casualties. Retaining structures of all types performed well and no failures were observed.

Original languageEnglish (US)
Pages (from-to)S75-S96
JournalEarthquake Spectra
Volume28
Issue numberSUPPL.1
DOIs
StatePublished - Jun 2012

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

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