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TitleNumerical analysis of the Venda Nova II powerhouse complex
Author(s)Miranda, Tiago F. S.
Correia, A. Gomes
Eclaircy-Caudron, S.
Dias, D.
Lima, Celso
Sousa, L. R.
Issue date2007
PublisherTaylor & Francis
CitationSOUSA, L. R. [et al.], eds. – “Applications of computational mechanics in Geotechnical Engineering : proceedings of the 5th International Workshop, Guimarães, Portugal, 2007”. London : Taylor & Francis, 2007. ISBN 978-0415-43789-9. p. 201-212.
Abstract(s)In the North of Portugal a hydroelectric scheme called Venda Nova II was recently built in order to optimize the resources of the reservoirs created by Venda Nova and Salamonde dams. The scheme, almost fully composed by underground structures and built in a predominantly granite rock mass, include several tunnels with a total length of about 7.5km, inclined and vertical shafts with a total length of 750m and two caverns which compose the powerhouse complex. The complex consists of two caverns interconnected by two galleries at a dept of about 350m. For this complex, 2D and 3D numerical models were developed considering the different construction stages. The geomechanical parameters of the granite formation for the numerical models were obtained using GEOPAT. This software is a knowledge based system which allows obtaining geomechanical parameters for underground structures modelling in granite formations. The 2D model was developed in the Phases2 software while the 3D model in FLAC3D. In this paper results of these models are analysed. Some comparisons are carried out between the models results and the monitored data. The numerical results show in general a good agreement with the monitored ones.
TypeConference paper
AccessOpen access
Appears in Collections:CEC-GEO - Comunicações a Conferências Internacionais

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