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Application of fuzzy set theory to evaluate the effect of pore pressure build-up on the seismic stability of Karkheh Dam, Iran

Shafiee, A ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1080/13632460802211990
  3. Publisher: 2008
  4. Abstract:
  5. It is a current practice to employ composite claya mixture of clay and aggregates that float within the clayey matrixas the core of embankment dams that have classically been constructed from pure clays. Experience has shown that significant pore pressures could build up during cyclic undrained loading in composite clays. This may threaten dam stability during earthquake loading. However, it is difficult to attribute a single value to excess pore pressure in conventional seismic stability analysis because of the random nature of earthquake loading, leading to uncertainty in the evaluation of factor of safety against sliding. This article evaluates the importance of pore pressure build-up in composite clays on the seismic behavior of Karkheh embankment dam in Iran and then documents a quantitative scheme using fuzzy set analysis to evaluate the failure potential of the dam
  6. Keywords:
  7. Dams ; Earthquakes ; Embankment dams ; Embankments ; Failure analysis ; Fuzzy sets ; Hydraulic structures ; Pore pressure ; Quality assurance ; Safety factor ; Seismology ; Set theory ; Uncertainty analysis ; Composite clay ; Current practices ; Dam stabilities ; Earthquake loadings ; Excess pore pressures ; Factor of safety ; Fuzzy set ; Fuzzy Set theories ; Seismic behaviors ; Seismic stabilities ; Single values ; Uncertainty ; Undrained loadings ; Clay minerals
  8. Source: Journal of Earthquake Engineering ; Volume 12, Issue 8 , 2008 , Pages 1296-1313 ; 13632469 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/13632460802211990?journalCode=ueqe20