Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling

In this paper, various methods have been used to control and evaluate engineering difficulties in mining accurately. Different unstable scenarios occurring at the surfaces of underground mine walls, have been identified by comparing 3D terrestrial laser scanning surveys and subsequent point cloud 3D...

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Autores principales:	Claudio Vanneschi, Giovanni Mastrorocco, Riccardo Salvini
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	multitemporal terrestrial laser scanning rock pillar failure underground quarry finite element method Geography (General) G1-922
Acceso en línea:	https://doaj.org/article/ee62b4576f9f45a18dd687a6183a5d5a
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id	oai:doaj.org-article:ee62b4576f9f45a18dd687a6183a5d5a
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spelling	oai:doaj.org-article:ee62b4576f9f45a18dd687a6183a5d5a2021-11-25T17:53:09ZAssessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling10.3390/ijgi101107742220-9964https://doaj.org/article/ee62b4576f9f45a18dd687a6183a5d5a2021-11-01T00:00:00Zhttps://www.mdpi.com/2220-9964/10/11/774https://doaj.org/toc/2220-9964In this paper, various methods have been used to control and evaluate engineering difficulties in mining accurately. Different unstable scenarios occurring at the surfaces of underground mine walls, have been identified by comparing 3D terrestrial laser scanning surveys and subsequent point cloud 3D analysis. These techniques, combined with a change detection analysis approach and the integration of rock mechanics’ modelling, represent an asset for the assessment and management of the risk in mining. The change detection analysis can be used as control of mining and industrial processes as well as to identify valid model scenarios for establishing possible failure causes. A pillar spalling failure has been identified in an Italian underground marble quarry and this topic represents the basis of the present paper. A Finite-Element Method was used to verify the occurrence of relatively high-stress concentrations in the pillar. The FEM modelling revealed that stresses in the proximity of the pillar may have sufficient magnitude to induce cracks growth and spalling failure.Claudio VanneschiGiovanni MastroroccoRiccardo SalviniMDPI AGarticlemultitemporal terrestrial laser scanningrock pillar failureunderground quarryfinite element methodGeography (General)G1-922ENISPRS International Journal of Geo-Information, Vol 10, Iss 774, p 774 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	multitemporal terrestrial laser scanning rock pillar failure underground quarry finite element method Geography (General) G1-922
spellingShingle	multitemporal terrestrial laser scanning rock pillar failure underground quarry finite element method Geography (General) G1-922 Claudio Vanneschi Giovanni Mastrorocco Riccardo Salvini Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling
description	In this paper, various methods have been used to control and evaluate engineering difficulties in mining accurately. Different unstable scenarios occurring at the surfaces of underground mine walls, have been identified by comparing 3D terrestrial laser scanning surveys and subsequent point cloud 3D analysis. These techniques, combined with a change detection analysis approach and the integration of rock mechanics’ modelling, represent an asset for the assessment and management of the risk in mining. The change detection analysis can be used as control of mining and industrial processes as well as to identify valid model scenarios for establishing possible failure causes. A pillar spalling failure has been identified in an Italian underground marble quarry and this topic represents the basis of the present paper. A Finite-Element Method was used to verify the occurrence of relatively high-stress concentrations in the pillar. The FEM modelling revealed that stresses in the proximity of the pillar may have sufficient magnitude to induce cracks growth and spalling failure.
format	article
author	Claudio Vanneschi Giovanni Mastrorocco Riccardo Salvini
author_facet	Claudio Vanneschi Giovanni Mastrorocco Riccardo Salvini
author_sort	Claudio Vanneschi
title	Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling
title_short	Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling
title_full	Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling
title_fullStr	Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling
title_full_unstemmed	Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling
title_sort	assessment of a rock pillar failure by using change detection analysis and fem modelling
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ee62b4576f9f45a18dd687a6183a5d5a
work_keys_str_mv	AT claudiovanneschi assessmentofarockpillarfailurebyusingchangedetectionanalysisandfemmodelling AT giovannimastrorocco assessmentofarockpillarfailurebyusingchangedetectionanalysisandfemmodelling AT riccardosalvini assessmentofarockpillarfailurebyusingchangedetectionanalysisandfemmodelling
_version_	1718411896809324544

Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling

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