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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
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| Series: | ISPRS International Journal of Geo-Information |
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| Online Access: | https://www.mdpi.com/2220-9964/10/11/774 |
| _version_ | 1797510115799072768 |
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| author | Claudio Vanneschi Giovanni Mastrorocco Riccardo Salvini |
| author_facet | Claudio Vanneschi Giovanni Mastrorocco Riccardo Salvini |
| author_sort | Claudio Vanneschi |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:27:05Z |
| format | Article |
| id | doaj.art-ee62b4576f9f45a18dd687a6183a5d5a |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-03-10T05:27:05Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-ee62b4576f9f45a18dd687a6183a5d5a2023-11-22T23:36:39ZengMDPI AGISPRS International Journal of Geo-Information2220-99642021-11-01101177410.3390/ijgi10110774Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM ModellingClaudio Vanneschi0Giovanni Mastrorocco1Riccardo Salvini2Department of Environment, Earth and Physical Sciences and Centre of GeoTechnologies CGT, University of Siena, Via Vetri Vecchi 34, 52027 San Giovanni Valdarno, ItalySole Proprietorship, Via Marco Polo 9, 84043 Agropoli, ItalyDepartment of Environment, Earth and Physical Sciences and Centre of GeoTechnologies CGT, University of Siena, Via Vetri Vecchi 34, 52027 San Giovanni Valdarno, ItalyIn 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.https://www.mdpi.com/2220-9964/10/11/774multitemporal terrestrial laser scanningrock pillar failureunderground quarryfinite element method |
| spellingShingle | Claudio Vanneschi Giovanni Mastrorocco Riccardo Salvini Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling ISPRS International Journal of Geo-Information multitemporal terrestrial laser scanning rock pillar failure underground quarry finite element method |
| title | 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_short | 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 |
| topic | multitemporal terrestrial laser scanning rock pillar failure underground quarry finite element method |
| url | https://www.mdpi.com/2220-9964/10/11/774 |
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