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New seepage-related design graphs for rock-fill dams

Soleimanbeigi, A ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1201/b16818-151
  3. Publisher: Taylor and Francis/ Balkema , 2006
  4. Abstract:
  5. Seepage analysis serves as one of the most significant stages in the design process of an embankment dam. In two-dimensional (2D) seepage analysis of embankment dams, little or no attention is paid to the widthwise flows from side abutments. Moreover, the role of grout curtain extensions into the side abutments and abutment material properties are inevitably neglected when performing seepage analyses in 2D plane. In this paper, two and three-dimensional (3D) models of a rock-fill dam are generated and several unsteady and steady state seepage analyses are performed using finite element method (FEM). The results obtained from 2D and 3D seepage analyses were compared with measurements from the instrumentation system installed in the dam body and foundation. It is concluded that for embankment dams to be constructed in narrow valleys, 2D seepage analysis results are far from the reality and considering 3D modeling of such dam sites is vital. Several design graphs were developed to calculate 3D discharge rates and hydraulic gradients from those obtained from 2D seepage analysis. © 2006 Taylor & Francis Group
  6. Keywords:
  7. 3D modeling ; Abutments (bridge) ; Design ; Embankment dams ; Seepage ; Design process ; Discharge rates ; Grout curtains ; Hydraulic gradients ; Instrumentation systems ; Seepage analysis ; Three-dimensional (3D) model ; Two Dimensional (2 D) ; Reservoirs (water)
  8. Source: International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD - Dams and Reservoirs, Societies and Environment in the 21st Century, Barcelona, 18 June 2006 through 18 June 2006 ; Volume 1 , 2006 , Pages 971-978 ; 0415404231 (ISBN); 9780415404235 (ISBN)
  9. URL: https://www.researchgate.net/publication/283611874_New_seepage-related_design_graphs_for_rock-fill_dams