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| DOI | 10.1177/25726668241241989 | ||
| Año | 2024 | ||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
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.
| Revista | ISSN |
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| Mining Technology: Transactions Of The Institute Of Mining And Metallurgy | 2572-6668 |
| Ord. | Autor | Género | Institución - País |
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| 1 | Bustos, Nadia | - |
Curtin Univ - Australia
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| 2 | Villaescusa, Ernesto | - |
Curtin Univ - Australia
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| 3 | Garcia, Fernando | - |
MVA Geoconsulta - Chile
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| Fuente |
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| National Agency for Research and Development (ANID)/Scholarship Program/DOCTORADO BECAS CHILE/2017 |
| Agradecimiento |
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| The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the National Agency for Research and Development (ANID)/Scholarship Program/DOCTORADO BECAS CHILE/2017 (grant number 72180287). |