Pseudo-discontinuum model to simulate hard-rock mine pillars
In this study, the pseudo-discontinuum modeling technique, called continuum Voronoi block model (CVBM), was applied to represent the behavior of hard-rock pillars from underground mines subjected to high field stresses. The CVBM’s ability to produce numerical results consistent with the observed beh...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-08-01
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| Series: | Underground Space |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2467967423000259 |
| _version_ | 1827918488157552640 |
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| author | Erick Rógenes Alessandra dos Santos Gomes Márcio Muniz de Farias Leandro Lima Rasmussen |
| author_facet | Erick Rógenes Alessandra dos Santos Gomes Márcio Muniz de Farias Leandro Lima Rasmussen |
| author_sort | Erick Rógenes |
| collection | DOAJ |
| description | In this study, the pseudo-discontinuum modeling technique, called continuum Voronoi block model (CVBM), was applied to represent the behavior of hard-rock pillars from underground mines subjected to high field stresses. The CVBM’s ability to produce numerical results consistent with the observed behavior of pillars is demonstrated through the numerical analysis of a hypothetical case and a back analysis of the Creighton mine pillar. The results show that the model can capture convergence displacements and explicitly show the formation of macro-fractures parallel to excavation walls, intact rock slabs, and V-shaped notches. These components are characteristics of brittle failure induced by highly stressed ground conditions. The studies presented in this work confirm the CVBM as a convenient tool for the numerical modeling of intact rock pillars excavated in deep underground mines. |
| first_indexed | 2024-03-13T03:44:18Z |
| format | Article |
| id | doaj.art-220767b2f6ec4b0a8b4b3b759588ab32 |
| institution | Directory Open Access Journal |
| issn | 2467-9674 |
| language | English |
| last_indexed | 2024-03-13T03:44:18Z |
| publishDate | 2023-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Underground Space |
| spelling | doaj.art-220767b2f6ec4b0a8b4b3b759588ab322023-06-23T04:43:26ZengKeAi Communications Co., Ltd.Underground Space2467-96742023-08-01118195Pseudo-discontinuum model to simulate hard-rock mine pillarsErick Rógenes0Alessandra dos Santos Gomes1Márcio Muniz de Farias2Leandro Lima Rasmussen3Corresponding author.; Faculty of Technology, University of Brasília, DF 70910-900, Brasília, BrazilFaculty of Technology, University of Brasília, DF 70910-900, Brasília, BrazilFaculty of Technology, University of Brasília, DF 70910-900, Brasília, BrazilFaculty of Technology, University of Brasília, DF 70910-900, Brasília, BrazilIn this study, the pseudo-discontinuum modeling technique, called continuum Voronoi block model (CVBM), was applied to represent the behavior of hard-rock pillars from underground mines subjected to high field stresses. The CVBM’s ability to produce numerical results consistent with the observed behavior of pillars is demonstrated through the numerical analysis of a hypothetical case and a back analysis of the Creighton mine pillar. The results show that the model can capture convergence displacements and explicitly show the formation of macro-fractures parallel to excavation walls, intact rock slabs, and V-shaped notches. These components are characteristics of brittle failure induced by highly stressed ground conditions. The studies presented in this work confirm the CVBM as a convenient tool for the numerical modeling of intact rock pillars excavated in deep underground mines.http://www.sciencedirect.com/science/article/pii/S2467967423000259Brittle failureSpallingBulkingVoronoi tessellation |
| spellingShingle | Erick Rógenes Alessandra dos Santos Gomes Márcio Muniz de Farias Leandro Lima Rasmussen Pseudo-discontinuum model to simulate hard-rock mine pillars Underground Space Brittle failure Spalling Bulking Voronoi tessellation |
| title | Pseudo-discontinuum model to simulate hard-rock mine pillars |
| title_full | Pseudo-discontinuum model to simulate hard-rock mine pillars |
| title_fullStr | Pseudo-discontinuum model to simulate hard-rock mine pillars |
| title_full_unstemmed | Pseudo-discontinuum model to simulate hard-rock mine pillars |
| title_short | Pseudo-discontinuum model to simulate hard-rock mine pillars |
| title_sort | pseudo discontinuum model to simulate hard rock mine pillars |
| topic | Brittle failure Spalling Bulking Voronoi tessellation |
| url | http://www.sciencedirect.com/science/article/pii/S2467967423000259 |
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