Reservoir Bank Deformation Modeling: Application to Grangent Reservoir
Publication: Journal of Hydraulic Engineering
Volume 131, Issue 7
Abstract
Within inshore or fluvial environments, submerged fine matter mud banks are characterized by a high water content, a great spatial variability, and a strong deformability. The study of their instabilities induced by the variation of hydraulic stress requires a coupled modeling of sliding, erosion, and deposition mechanisms. In order to predict the impact of dam reservoir emptying on the stability of immersed upstream slopes, the method of approach to the problem proposed here combines theoretical developments, numerical modeling, site observations, and measurements. First, the theoretically achieved sliding criterion is compared with unstable mud height measurements. For more accuracy in the representation of the natural events, the sliding criterion is then integrated within a numerical code which couples the computation of hydrodynamic conditions, the erosion, and deposition of mud and the banks sliding. Finally, the results of the combination of all these mechanisms are compared with the variations in the bathymetric profiles obtained on the experimental site.
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Published In
Journal of Hydraulic Engineering
Volume 131 • Issue 7 • July 2005
Pages: 586 - 595
Copyright
© 2005 ASCE.
History
Received: May 3, 2004
Accepted: Dec 1, 2004
Published online: Jul 1, 2005
Published in print: Jul 2005
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