A study of the factors and processes involved in the sedimentation of Tarbela reservoir,Pakistan |
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Authors: | Khawaja Bilal Ahmed Martin Sanchez |
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Institution: | 1.UMR CNRS 6112 Planétologie et Géodynamique,Université de Nantes,Nantes,France |
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Abstract: | This study concerns Tarbela dam reservoir which is a major resource of Pakistan in terms of electricity generation and irrigation
supplies. Rapid filling of reservoir due to sediment transported and deposited by Indus River is described and analysed in
this article. Causes of sediment deposition and their impact on dam’s function and life are studied. The main characteristic
parameters of the site are presented. The morphological evolution of the reservoir bed induced by dam construction, between
the year 1974 when the River bed was in its original state before dam construction, and the situation of the river bed after
the deposition of the sediment in the year 2006, is examined. A numerical model developed in this study (Khawaja and Sanchez
in Tarbela dam: a numerical model for sediment management in the reservoir; coastal and maritime mediterranean conference,
1st edn, Hammamet, pp 111–114, 2009) allows obtaining the above-stated provisional evolution of the reservoir over the coming years. Finally, five potential
remedial solutions are thoroughly discussed. |
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