High sand tailings dams: main challenges

The design and construction of higher tailings dams result in much higher confining pressures which can affect the geotechnical behaviour of tailings sand dams. This becomes even more relevant in regions with regular seismic activity. This article presents results and analyses of oedometric compress...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Valenzuela,Luis, Campaña,Jose, Bard,Edgar, Figueroa,Abraham
Lenguaje:English
Publicado: Universidad Católica de la Santísima Concepción 2016
Materias:
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000200002
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:scielo:S0718-28132016000200002
record_format dspace
spelling oai:scielo:S0718-281320160002000022017-01-10High sand tailings dams: main challengesValenzuela,LuisCampaña,JoseBard,EdgarFigueroa,Abraham tailings sand dams high confining pressures cyclic resistance observational method mine waste disposal The design and construction of higher tailings dams result in much higher confining pressures which can affect the geotechnical behaviour of tailings sand dams. This becomes even more relevant in regions with regular seismic activity. This article presents results and analyses of oedometric compressibility as well as cyclic resistance of tailings at high confinement pressures. Moreover, results of crushing and compressibility of gravel and rock-fill at high confinement pressures are also studied, since they form part of the drainage system of tailings dams. The seismic stability and deformation of tailings dams is discussed from the numerical analysis point of view. The importance of the selected PGA value and how has evolved in time in the Chilean engineering is shown. Finally, aspects related to the observational method to be applied during the construction and operation of tailings dams, are described. Future trends on mine waste disposal are introduced such as thickened and paste tailings and filtered tailings.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.20 20162016-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000200002en10.4067/S0718-28132016000200002
institution Scielo Chile
collection Scielo Chile
language English
topic tailings sand dams
high confining pressures
cyclic resistance
observational method
mine waste disposal
spellingShingle tailings sand dams
high confining pressures
cyclic resistance
observational method
mine waste disposal
Valenzuela,Luis
Campaña,Jose
Bard,Edgar
Figueroa,Abraham
High sand tailings dams: main challenges
description The design and construction of higher tailings dams result in much higher confining pressures which can affect the geotechnical behaviour of tailings sand dams. This becomes even more relevant in regions with regular seismic activity. This article presents results and analyses of oedometric compressibility as well as cyclic resistance of tailings at high confinement pressures. Moreover, results of crushing and compressibility of gravel and rock-fill at high confinement pressures are also studied, since they form part of the drainage system of tailings dams. The seismic stability and deformation of tailings dams is discussed from the numerical analysis point of view. The importance of the selected PGA value and how has evolved in time in the Chilean engineering is shown. Finally, aspects related to the observational method to be applied during the construction and operation of tailings dams, are described. Future trends on mine waste disposal are introduced such as thickened and paste tailings and filtered tailings.
author Valenzuela,Luis
Campaña,Jose
Bard,Edgar
Figueroa,Abraham
author_facet Valenzuela,Luis
Campaña,Jose
Bard,Edgar
Figueroa,Abraham
author_sort Valenzuela,Luis
title High sand tailings dams: main challenges
title_short High sand tailings dams: main challenges
title_full High sand tailings dams: main challenges
title_fullStr High sand tailings dams: main challenges
title_full_unstemmed High sand tailings dams: main challenges
title_sort high sand tailings dams: main challenges
publisher Universidad Católica de la Santísima Concepción
publishDate 2016
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132016000200002
work_keys_str_mv AT valenzuelaluis highsandtailingsdamsmainchallenges
AT campanajose highsandtailingsdamsmainchallenges
AT bardedgar highsandtailingsdamsmainchallenges
AT figueroaabraham highsandtailingsdamsmainchallenges
_version_ 1714203339221106688