Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile

The significant growth of the metallic mining industry over the last few decades has made the construction of tailings deposits of large dimensions necessary, tailings being the fine mining waste resulting from the milling and concentration processes. The most common types of tailings dam in mining...

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Autor principal: Valenzuela,Luis
Lenguaje:English
Publicado: Universidad Católica de la Santísima Concepción 2016
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000100001
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spelling oai:scielo:S0718-281320160001000012016-08-17Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in ChileValenzuela,Luis tailings dams sand dams dam failures mining The significant growth of the metallic mining industry over the last few decades has made the construction of tailings deposits of large dimensions necessary, tailings being the fine mining waste resulting from the milling and concentration processes. The most common types of tailings dam in mining are the tailings sand dam, a special kind of hydraulic fill dam, for two main reasons: because such dams need to be built over a longperiod of time, and due to the low cost of sand available from the tailings. In particular, this paper analyses the behaviour of tailings dams in Chile, one of the most seismically active countries in the world. The design and construction of tailings dams, as well as the effect of drain gravels and filter materials on the geotechnical behaviour of the tailings sands, are also discussed. The importance of the operational phase is addressed, because in tailings dams this phase can last many years and be the determinant in the final behaviour of the dams. Finally, recommendations to mitigate risks along the complete life cycle of the dams are given, and permeability and fines content effects as well as sand tailings drained and undrained strength are considered.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.19 20162016-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000100001en10.4067/S0718-28132016000100001
institution Scielo Chile
collection Scielo Chile
language English
topic tailings dams
sand dams
dam failures
mining
spellingShingle tailings dams
sand dams
dam failures
mining
Valenzuela,Luis
Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile
description The significant growth of the metallic mining industry over the last few decades has made the construction of tailings deposits of large dimensions necessary, tailings being the fine mining waste resulting from the milling and concentration processes. The most common types of tailings dam in mining are the tailings sand dam, a special kind of hydraulic fill dam, for two main reasons: because such dams need to be built over a longperiod of time, and due to the low cost of sand available from the tailings. In particular, this paper analyses the behaviour of tailings dams in Chile, one of the most seismically active countries in the world. The design and construction of tailings dams, as well as the effect of drain gravels and filter materials on the geotechnical behaviour of the tailings sands, are also discussed. The importance of the operational phase is addressed, because in tailings dams this phase can last many years and be the determinant in the final behaviour of the dams. Finally, recommendations to mitigate risks along the complete life cycle of the dams are given, and permeability and fines content effects as well as sand tailings drained and undrained strength are considered.
author Valenzuela,Luis
author_facet Valenzuela,Luis
author_sort Valenzuela,Luis
title Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile
title_short Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile
title_full Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile
title_fullStr Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile
title_full_unstemmed Design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in Chile
title_sort design, construction, operation and the effect of fines content and permeability on the seismic performance of tailings sand dams in chile
publisher Universidad Católica de la Santísima Concepción
publishDate 2016
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000100001
work_keys_str_mv AT valenzuelaluis designconstructionoperationandtheeffectoffinescontentandpermeabilityontheseismicperformanceoftailingssanddamsinchile
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