Comparison of two adopted face perpendicular preconditioning techniques
Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced b...
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| Language: | English |
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Routledge
2021
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| Online Access: | https://www.tandfonline.com/doi/abs/10.1080/25726668.2018.1517204?journalCode=ymnt21 https://doi.org/10.1080/25726668.2018.1517204 http://hdl.handle.net/11408/4574 |
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| author | Sengani, F. Zvarivadza, Tawanda Adoko, A. C. |
| author_facet | Sengani, F. Zvarivadza, Tawanda Adoko, A. C. |
| author_sort | Sengani, F. |
| collection | DSpace |
| description | Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods. |
| format | Article |
| id | ir-11408-4574 |
| institution | My University |
| language | English |
| publishDate | 2021 |
| publisher | Routledge |
| record_format | dspace |
| spelling | ir-11408-45742022-06-27T13:49:06Z Comparison of two adopted face perpendicular preconditioning techniques Sengani, F. Zvarivadza, Tawanda Adoko, A. C. Preconditioning Deep-level gold mining Rockburst Seismicity Ground penetration radar Face perpendicular preconditioning is one of the mechanisms used in deep gold mines to transfer stress far ahead of the face on the development ends. Although face perpendicular pre-conditioning has been implemented in gold mines, rockbursts are still considered as the most problematic issue faced by deep gold mines. This paper investigates the effectiveness of face-perpendicular preconditioning that was developed for development ends in mechanized gold mines. The investigation comprised a comparison of four face and five face-perpendicular preconditioning holes in a deep gold mine. The results of the study indicated that five face-perpendicular preconditioning is more effective than four face-perpendicular preconditioning holes. The results were validated by adequate fracturing on the mining face, improvement of fracturing in the vicinity of the sockets and rapid decrease in the hangingwall fracturing. Ground Penetrating Radar, borehole periscope, seismic monitoring systems and numerical modelling were used to validate the effectiveness of the methods. 2021-11-22T10:47:41Z 2021-11-22T10:47:41Z 2018 Article https://www.tandfonline.com/doi/abs/10.1080/25726668.2018.1517204?journalCode=ymnt21 https://doi.org/10.1080/25726668.2018.1517204 http://hdl.handle.net/11408/4574 en Mining Technology;Vol. 128; No. 1: p. 21-38 open Routledge |
| spellingShingle | Preconditioning Deep-level gold mining Rockburst Seismicity Ground penetration radar Sengani, F. Zvarivadza, Tawanda Adoko, A. C. Comparison of two adopted face perpendicular preconditioning techniques |
| title | Comparison of two adopted face perpendicular preconditioning techniques |
| title_full | Comparison of two adopted face perpendicular preconditioning techniques |
| title_fullStr | Comparison of two adopted face perpendicular preconditioning techniques |
| title_full_unstemmed | Comparison of two adopted face perpendicular preconditioning techniques |
| title_short | Comparison of two adopted face perpendicular preconditioning techniques |
| title_sort | comparison of two adopted face perpendicular preconditioning techniques |
| topic | Preconditioning Deep-level gold mining Rockburst Seismicity Ground penetration radar |
| url | https://www.tandfonline.com/doi/abs/10.1080/25726668.2018.1517204?journalCode=ymnt21 https://doi.org/10.1080/25726668.2018.1517204 http://hdl.handle.net/11408/4574 |
| work_keys_str_mv | AT senganif comparisonoftwoadoptedfaceperpendicularpreconditioningtechniques AT zvarivadzatawanda comparisonoftwoadoptedfaceperpendicularpreconditioningtechniques AT adokoac comparisonoftwoadoptedfaceperpendicularpreconditioningtechniques |