Illumination of contributing parameters of uneven break in narrow vein mine
One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground...
| Main Authors: | , , , |
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| Format: | Conference Paper |
| Published: |
Springer
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/77323 |
| _version_ | 1848763838983307264 |
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| author | Jang, Hyong Doo Taheri, Sina Topal, Erkan Kawamura, Youhei |
| author_facet | Jang, Hyong Doo Taheri, Sina Topal, Erkan Kawamura, Youhei |
| author_sort | Jang, Hyong Doo |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground mines. The complex mechanism of UB must be examined to minimize the UB phenomenon. In this study, the contribution of ten primary UB causative parameters is scrutinized investigating a published UB prediction ANN model. The inputs (UB causative factors) contributions to the output (percentage of UB) of the ANN model were analyzed using Profile methodology (PM). The results PM revealed the essential importance of geological parameters to UB phenomenon as the calculated contributions of adjusted Q-rate (GAQ) and average horizontal to vertical stress ratio (GSK) are 20.48% and 18.12% respectively. Also, the trends of the other eight UB causative factors were investigated. The findings of this study can be used as a reference in stope design and reconciliation processes to maximize the productivity of the underground mine. |
| first_indexed | 2025-11-14T11:09:50Z |
| format | Conference Paper |
| id | curtin-20.500.11937-77323 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:09:50Z |
| publishDate | 2019 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-773232021-01-06T03:19:05Z Illumination of contributing parameters of uneven break in narrow vein mine Jang, Hyong Doo Taheri, Sina Topal, Erkan Kawamura, Youhei resources engineering and extractive metallurgy One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground mines. The complex mechanism of UB must be examined to minimize the UB phenomenon. In this study, the contribution of ten primary UB causative parameters is scrutinized investigating a published UB prediction ANN model. The inputs (UB causative factors) contributions to the output (percentage of UB) of the ANN model were analyzed using Profile methodology (PM). The results PM revealed the essential importance of geological parameters to UB phenomenon as the calculated contributions of adjusted Q-rate (GAQ) and average horizontal to vertical stress ratio (GSK) are 20.48% and 18.12% respectively. Also, the trends of the other eight UB causative factors were investigated. The findings of this study can be used as a reference in stope design and reconciliation processes to maximize the productivity of the underground mine. 2019 Conference Paper http://hdl.handle.net/20.500.11937/77323 10.1007/978-3-030-33954-8_52 Springer fulltext |
| spellingShingle | resources engineering and extractive metallurgy Jang, Hyong Doo Taheri, Sina Topal, Erkan Kawamura, Youhei Illumination of contributing parameters of uneven break in narrow vein mine |
| title | Illumination of contributing parameters of uneven break in narrow vein mine |
| title_full | Illumination of contributing parameters of uneven break in narrow vein mine |
| title_fullStr | Illumination of contributing parameters of uneven break in narrow vein mine |
| title_full_unstemmed | Illumination of contributing parameters of uneven break in narrow vein mine |
| title_short | Illumination of contributing parameters of uneven break in narrow vein mine |
| title_sort | illumination of contributing parameters of uneven break in narrow vein mine |
| topic | resources engineering and extractive metallurgy |
| url | http://hdl.handle.net/20.500.11937/77323 |