IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : Double End Dump River Closure At Tocoma Project on The Caroni River
Double End Dump River Closure At Tocoma Project on The Caroni River
Author : Fabiola Vera, Gonzalo Montilla and Arturo Marcano
Tocoma Project on the Caron¡ River located at South-eastern Venezuela, currently under construction, will add 2160 MW to the Venezuelan electrical system in 2014. The first stage of river diversion, completed in April 2011, allowed the construction of the main works in the dry, while the Caron¡ River was diverted at the right bank. The second stage of river diversion consisted of routing the Caron¡ River through the 18 sluices of 5.5x9 m located at the lower body of the spillway that will eventually be closed with gates, which will allow the filling of the reservoir and the commissioning tests of the first generating unit. In a Hydraulic Model Scale 1:80 of Tocoma Project built in the facilities of the Hydraulics Laboratory of CORPOELEC, test were done to determine and optimize the best diversion scheme for the project, including the final closure of the river. The simple vertical closure (with one cofferdam) and the double vertical closure (with two cofferdams) schemes were tested. The model investigations permitted the definition of the double end dump closure as the best alternative, because of the reduction of the materials size during the closure. This paper presents the comparison of both methods and their evaluation based on the world experience methodology used in large river closure operations, and the prototype experience gained during Tocoma actual closure. It is demonstrated the invaluable usefulness of physical modelling to optimize the use of equipment and materials in large river closure works.
File Size : 2,068,709 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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