Compaction control of soil-rock mixtures at Odelouca dam
DOI:
https://doi.org/10.14195/2184-8394_107_4Abstract
Odelouca dam is a zoned earth fill dam with 76 m height presently being constructed at South of Portugal. The embankment material is clayey soil, at the core, and weathered schist with a significant fraction of oversized particles, at the slopes. Compaction control during the construction is performed through in situ tests and laboratory compaction tests. Conclusions are drawn about the accuracy of the in situ methods based on available correction expressions (Torrey & Donaghe, 1994) of maximum unit weight and optimum water content of Proctor test results for soil-rock mixtures. New correction equations for the Proctor reference values for schistose material are presented based on results of vibratory compaction tests of large samples.
Downloads
References
American Society for Testing and Materials. Annual Book of ASTM Standards. Volume 04/08, Soil and Rock, Philadelphia, PA, 1994.
Caldeira, L. e Bilé Serra, J. Barragem de Odelouca. Interpretação e Análise dos Resultados dos Aterros Experimentais dos Maciços Estabilizadores. Relatório 420/05 – NBOA/DG, LNEC.
Brito, A. Compactação de Aterros de Barragens. Novas Metodologias de Controlo. Tese de Mestrado, Instituto Superior Técnico, 2005.
COBA Projecto da barragem de Odelouca a montante da Ribeira de Monchique, Lisboa, 2000.
NECSO, Construtora do Tâmega – Empreitada da Construção da barragem de Odelouca. Aterros Experimentais. Vol. I: Aterro Experimental do material 3, 2003.
Torrey, V. H. e Donaghe, R.T. Compaction Characteristics of Earth-Rock Mixtures. Miscellaneous Paper GL-91-16, U.S. Army Corps of Engineers, Waterways Experiment Sation, Vicksburg, MS. 1991.
Torrey, V. H. e Donaghe, R.T. Compaction Control of Earth-Rock Mixtures: A New Approach. Geotechnical Testing Journal, ASTM, VOl.17, No. 3, September 1994, pp. 371-386, 1994.
