3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations

This article presents laboratory and spatial numerical modeling of cemented paste backfill. The first part of the research concerned laboratory tests of a mixture of sand, water, and variable cement content (5%, 10%, and 15%). The density and curing time of the mixture were determined. Moreover, cyl...

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Autor principal:	Krzysztof Skrzypkowski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	RS3 numerical modeling cemented paste backfill strip mining compressive and tensile strength displacement Technology T
Acceso en línea:	https://doaj.org/article/61c8073aa1f54a07944b708e1b0ad061
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spelling	oai:doaj.org-article:61c8073aa1f54a07944b708e1b0ad0612021-11-25T17:28:27Z3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations10.3390/en142277501996-1073https://doaj.org/article/61c8073aa1f54a07944b708e1b0ad0612021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7750https://doaj.org/toc/1996-1073This article presents laboratory and spatial numerical modeling of cemented paste backfill. The first part of the research concerned laboratory tests of a mixture of sand, water, and variable cement content (5%, 10%, and 15%). The density and curing time of the mixture were determined. Moreover, cylindrical samples with a diameter of 46 mm and a height of 92 mm were constructed, for which compressive and tensile strength were calculated after one, two, three, and four weeks. The second part of the research concerned 3D numerical modeling with the use of RS3 software. For the exploitation field with dimensions of 65 m × 65 m, a strip-mining method was designed. The main objective of the research was to determine the changes in displacements around the haulage room and transportation roadway located in the immediate vicinity of the exploitation field. For the first time in numerical modeling, a two-sided strip method was used for the four stages of mining the ore deposit where the post-mining space was filled with a cemented paste backfill. Based on this research, the compressibility coefficient was determined.Krzysztof SkrzypkowskiMDPI AGarticleRS3numerical modelingcemented paste backfillstrip miningcompressive and tensile strengthdisplacementTechnologyTENEnergies, Vol 14, Iss 7750, p 7750 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	RS3 numerical modeling cemented paste backfill strip mining compressive and tensile strength displacement Technology T
spellingShingle	RS3 numerical modeling cemented paste backfill strip mining compressive and tensile strength displacement Technology T Krzysztof Skrzypkowski 3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations
description	This article presents laboratory and spatial numerical modeling of cemented paste backfill. The first part of the research concerned laboratory tests of a mixture of sand, water, and variable cement content (5%, 10%, and 15%). The density and curing time of the mixture were determined. Moreover, cylindrical samples with a diameter of 46 mm and a height of 92 mm were constructed, for which compressive and tensile strength were calculated after one, two, three, and four weeks. The second part of the research concerned 3D numerical modeling with the use of RS3 software. For the exploitation field with dimensions of 65 m × 65 m, a strip-mining method was designed. The main objective of the research was to determine the changes in displacements around the haulage room and transportation roadway located in the immediate vicinity of the exploitation field. For the first time in numerical modeling, a two-sided strip method was used for the four stages of mining the ore deposit where the post-mining space was filled with a cemented paste backfill. Based on this research, the compressibility coefficient was determined.
format	article
author	Krzysztof Skrzypkowski
author_facet	Krzysztof Skrzypkowski
author_sort	Krzysztof Skrzypkowski
title	3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations
title_short	3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations
title_full	3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations
title_fullStr	3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations
title_full_unstemmed	3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations
title_sort	3d numerical modelling of the application of cemented paste backfill on displacements around strip excavations
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/61c8073aa1f54a07944b708e1b0ad061
work_keys_str_mv	AT krzysztofskrzypkowski 3dnumericalmodellingoftheapplicationofcementedpastebackfillondisplacementsaroundstripexcavations
_version_	1718412288193462272

3D Numerical Modelling of the Application of Cemented Paste Backfill on Displacements around Strip Excavations

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