Scalping techniques in geomechanical characterization of coarse granular materials

The study of materials with large particle size has been a great challenge in geotechnical engineering. Despite the current work around the world using coarse-grained materials CGM in rockfill dams and mining waste rock dumps, for instance the geotechnical characterization of these materials is stil...

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Autores principales:	Dorador,Leonardo, Villalobos,Felipe A.
Lenguaje:	English
Publicado:	Universidad Católica de la Santísima Concepción 2020
Materias:	coarse granular materials scalping method geotechnical characterization size-scaling shear strength
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132020000200024
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spelling	oai:scielo:S0718-281320200002000242021-01-16Scalping techniques in geomechanical characterization of coarse granular materialsDorador,LeonardoVillalobos,Felipe A. coarse granular materials scalping method geotechnical characterization size-scaling shear strength The study of materials with large particle size has been a great challenge in geotechnical engineering. Despite the current work around the world using coarse-grained materials CGM in rockfill dams and mining waste rock dumps, for instance the geotechnical characterization of these materials is still an important issue in geotechnical engineering practice which deserve more research. There are standards covering CGM in a few particular applications and scaling methods have been proposed to deal with large particle sizes. However, scaling methods are appropriate only under certain conditions. The scalping techniques consist in a simple approach for the geotechnical characterization of CGM. In this article, the scalping techniques analysed are divided in: the scalping method, the matrix method and the scalping/replacement, which are studied in detail in terms of its effectiveness, focusing on the geomechanical characterization of CGM. As a main conclusion, these three techniques are limited in its use under small scalping ratios (3 < r < 8) which is the ratio of maximum particle size of both original and scalped gradation. Finally, recommendations for the use of percentages and ratio of scalping are provided.info:eu-repo/semantics/openAccessUniversidad Católica de la Santísima ConcepciónObras y proyectos n.28 20202020-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132020000200024en10.4067/S0718-28132020000200024
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	coarse granular materials scalping method geotechnical characterization size-scaling shear strength
spellingShingle	coarse granular materials scalping method geotechnical characterization size-scaling shear strength Dorador,Leonardo Villalobos,Felipe A. Scalping techniques in geomechanical characterization of coarse granular materials
description	The study of materials with large particle size has been a great challenge in geotechnical engineering. Despite the current work around the world using coarse-grained materials CGM in rockfill dams and mining waste rock dumps, for instance the geotechnical characterization of these materials is still an important issue in geotechnical engineering practice which deserve more research. There are standards covering CGM in a few particular applications and scaling methods have been proposed to deal with large particle sizes. However, scaling methods are appropriate only under certain conditions. The scalping techniques consist in a simple approach for the geotechnical characterization of CGM. In this article, the scalping techniques analysed are divided in: the scalping method, the matrix method and the scalping/replacement, which are studied in detail in terms of its effectiveness, focusing on the geomechanical characterization of CGM. As a main conclusion, these three techniques are limited in its use under small scalping ratios (3 < r < 8) which is the ratio of maximum particle size of both original and scalped gradation. Finally, recommendations for the use of percentages and ratio of scalping are provided.
author	Dorador,Leonardo Villalobos,Felipe A.
author_facet	Dorador,Leonardo Villalobos,Felipe A.
author_sort	Dorador,Leonardo
title	Scalping techniques in geomechanical characterization of coarse granular materials
title_short	Scalping techniques in geomechanical characterization of coarse granular materials
title_full	Scalping techniques in geomechanical characterization of coarse granular materials
title_fullStr	Scalping techniques in geomechanical characterization of coarse granular materials
title_full_unstemmed	Scalping techniques in geomechanical characterization of coarse granular materials
title_sort	scalping techniques in geomechanical characterization of coarse granular materials
publisher	Universidad Católica de la Santísima Concepción
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-28132020000200024
work_keys_str_mv	AT doradorleonardo scalpingtechniquesingeomechanicalcharacterizationofcoarsegranularmaterials AT villalobosfelipea scalpingtechniquesingeomechanicalcharacterizationofcoarsegranularmaterials
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Scalping techniques in geomechanical characterization of coarse granular materials

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