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Paper Information

Journal:   PAJOUHESH-VA-SAZANDEGI   SUMMER 2004 , Volume 17 , Number (63 IN NATURAL RESOURCES); Page(s) 85 To 94.
 
Paper: 

HYDRAULIC ANALYSIS OF OVERTOPABLE GABION DAM WITH FULLY SEDIMENTED RESERVOIR

 
 
Author(s):  SHEYBANI H.R., BAYAT H.
 
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Abstract: 
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This study is concerned with a numerical modelling of flow through / over gabion dam with fully sedimented reservoir with fine sediment. Fine sediment causes that total of discharge flow over dam. The flow over the dam is assumed as a spatially varied flow, and control section has been verified by Hind"s method .The flow through porous coarse media of dam is nonlinear. This flow has been modelled numerically by continuity and Forchhiemer equations. The numerical model was performed for a impervious upstream face of gabion dam i.e. fully sedimented reservoir. The results of analysis show the pizometric water level and virtual velocity of any node within porous body as well as the profile of water level over damain order to confirm the finding of this research, physical model test of gabion dam has been done .Physical test results show that suction in gabion dam crest cause special condition for enegey losses and pressure profile in that domain.

 
Keyword(s): GABION, POROUS MEDIA, NON DARCY FLOW, ENERGY LOSS, FLOW SUCTION NONLINEAR FLOW, FLOOD CONTROL, WATER SURFACE PROFILE
 
References: 
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