Paper Information

Journal:   ESTEGHLAL   September 2003 , Volume 22 , Number 1; Page(s) 91 To 91.
 
Paper: 

SEEPAGE ANALYSIS THROUGH ROCKFILL DAMS BY FINITE ELEMENT METHOD IN A FIXED GRID

 
 
Author(s):  HOSSEINI SEYED MAHMOUD, SONEI E.
 
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Abstract: 
In this paper, Forchheimer equation is used as the constitutive equation for flow through rock fill, and the nonlinear two-dimensional governing equation with free surface is solved by a new finite element method in a fixed grill. The model is verified by applying it to different flow conditions. The first scenario, which is assumed to be one-dimensional with analytical solution available for it, is used to verify the developed code. Other scenarios, which are two-dimensional free surface tests on a laboratory rockfill, are used to verify the modeL The model shows satisfactory performance in this regard. For example, on average, a mean absolute relative error of about 2.3%, in terms of pressure head was found to exist between modelling results and observed values. Further capabilities of the model are discussed by simulating overflow through self- spillway rockfill dams.
 
Keyword(s): FINITE ELEMENT, METHOD, FIXED GRID, NON-DARCY FLOW, NON-LINEAR FLOW, ROCK FILL DAM
 
References: 
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