Volume 36, N. 3

September-December 2013

Numerical Analysis of El-Agrem Concrete Face Rockfill Dam


Volume 36, N. 3, September-December 2013 | DOWNLOAD PDF (8 downloads)


For concrete face rockfill dams, the behaviour of the concrete slab which provides the watertightness of the dam is a major concern. The deformation of the dam embankment during construction and operation leads to concrete slab deformation. This deformation should be compatible with the structural integrity of the concrete slab. This paper presents the numerical analysis of El-Agrem concrete face rockfill dam during reservoir filling using the finite element code Plaxis 2D-2010. Two models are used in this study, the Mohr Coulomb model and the Hardening Soil model to emphasize the impact of constitutive model on the dam deformation. The material stiffness parameters used in constitutive models were calibrated based on the available measured crest settlement. The analysis results indicate that the face slab deformation can be numerically predicted based on monitoring data at the dam crest and the Hardening Soil model gives a maximum slab deformation less than that obtained using Mohr Coulomb model.

Keywords: Concrete face rockfill dam, Stress-strain analysis, Concrete slab deformation, Rockfill behaviour,

Submitted on May 09, 2013.
Final Acceptance on September 24, 2013.
Discussion open until April 30, 2014.
DOI: 10.28927/SR.363293