Analysis of induced stress during construction and production stages of drawbells in block caving mines
Drawbells are large constructions that allow the flow of the broken ore at the production level within the drawpoints. The results of drawbell construction are crucial for a successful mine plan extraction in a block caving mine. Analysis and integration of all the topics related to a drawbell can i...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Institution of Mining and Metallurgy
2024
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| Online Access: | http://hdl.handle.net/20.500.11937/96081 |
| _version_ | 1848766092292390912 |
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| author | Bustos, Nadia Villaescusa, Ernesto Garcia, Fernando |
| author_facet | Bustos, Nadia Villaescusa, Ernesto Garcia, Fernando |
| author_sort | Bustos, Nadia |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Drawbells are large constructions that allow the flow of the broken ore at the production level within the drawpoints. The results of drawbell construction are crucial for a successful mine plan extraction in a block caving mine. Analysis and integration of all the topics related to a drawbell can improve the performance of the surrounding area of drawbells, particularly the damage associated to induced stress during the different stages of a block caving operation. The improvement of operational aspects related to the drawbells would decrease the risk of failure, particularly in deep mines subject to large stresses, which are more likely to experience sudden violent or progressive failure. A large-scale numerical model was developed to analyse different mining sectors using sub-models. It was found that the geotechnical response is highly correlated to the stress field, which also controlled the resulting seismicity. In a scale of a drawbell, the drawpoint drift roof and the bridge pillar between the drawbell and the undercutting level were found the most critical zones in the design. When geological structures are present, they can be activated in the construction at an earlier stage and, therefore, could easily become critical in the resulting rock mass damage. |
| first_indexed | 2025-11-14T11:45:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-96081 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:45:39Z |
| publishDate | 2024 |
| publisher | Institution of Mining and Metallurgy |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-960812024-12-05T01:56:16Z Analysis of induced stress during construction and production stages of drawbells in block caving mines Bustos, Nadia Villaescusa, Ernesto Garcia, Fernando Drawbells are large constructions that allow the flow of the broken ore at the production level within the drawpoints. The results of drawbell construction are crucial for a successful mine plan extraction in a block caving mine. Analysis and integration of all the topics related to a drawbell can improve the performance of the surrounding area of drawbells, particularly the damage associated to induced stress during the different stages of a block caving operation. The improvement of operational aspects related to the drawbells would decrease the risk of failure, particularly in deep mines subject to large stresses, which are more likely to experience sudden violent or progressive failure. A large-scale numerical model was developed to analyse different mining sectors using sub-models. It was found that the geotechnical response is highly correlated to the stress field, which also controlled the resulting seismicity. In a scale of a drawbell, the drawpoint drift roof and the bridge pillar between the drawbell and the undercutting level were found the most critical zones in the design. When geological structures are present, they can be activated in the construction at an earlier stage and, therefore, could easily become critical in the resulting rock mass damage. 2024 Journal Article http://hdl.handle.net/20.500.11937/96081 10.1177/25726668241241989 http://creativecommons.org/licenses/by/4.0/ Institution of Mining and Metallurgy fulltext |
| spellingShingle | Bustos, Nadia Villaescusa, Ernesto Garcia, Fernando Analysis of induced stress during construction and production stages of drawbells in block caving mines |
| title | Analysis of induced stress during construction and production stages of drawbells in block caving mines |
| title_full | Analysis of induced stress during construction and production stages of drawbells in block caving mines |
| title_fullStr | Analysis of induced stress during construction and production stages of drawbells in block caving mines |
| title_full_unstemmed | Analysis of induced stress during construction and production stages of drawbells in block caving mines |
| title_short | Analysis of induced stress during construction and production stages of drawbells in block caving mines |
| title_sort | analysis of induced stress during construction and production stages of drawbells in block caving mines |
| url | http://hdl.handle.net/20.500.11937/96081 |