Application of Distributed Optical Fiber Technology for Coal Bump Prevention
The 8939 working face in Xinzhouyao coal mine is a high coal bump proneness panel. For coal bump prevention, rib holes are drilled for pressure relief purpose. The deformational behaviour of the pressure relief borehole is studied using distributed optical fiber sensing technology. The strain of the...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/1753551 |
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| author | Han Liang Jun Han Zuoqing Bi |
| author_facet | Han Liang Jun Han Zuoqing Bi |
| author_sort | Han Liang |
| collection | DOAJ |
| description | The 8939 working face in Xinzhouyao coal mine is a high coal bump proneness panel. For coal bump prevention, rib holes are drilled for pressure relief purpose. The deformational behaviour of the pressure relief borehole is studied using distributed optical fiber sensing technology. The strain of the surrounding coal and the pressure relief range were measured from 0 hrs to 402 hrs after hole drilling. Based on the analysis of pressure relief procedure, combining with borehole observation, the crack development, limited equilibrium, collapse, and compaction stages of the borehole were estimated as 0∼72 h, 72∼190 h, 190∼402 h, and greater than 402 h, respectively. Consequently, the hole drilling is modified to 110 m ahead of the working face to achieve better pressure relief effect. Microseismic monitoring shows that, after hole drilling optimisation, the high-energy microseismic events and average energy of microseismic events are reduced significantly. |
| format | Article |
| id | doaj-art-a608db7932f946979368e210710a153c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-a608db7932f946979368e210710a153c2025-02-03T06:11:59ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/17535511753551Application of Distributed Optical Fiber Technology for Coal Bump PreventionHan Liang0Jun Han1Zuoqing Bi2College of Mining Engineering, Liaoning Technical University, Fuxin 123000, ChinaCollege of Mining Engineering, Liaoning Technical University, Fuxin 123000, ChinaCollege of Mining Engineering, Liaoning Technical University, Fuxin 123000, ChinaThe 8939 working face in Xinzhouyao coal mine is a high coal bump proneness panel. For coal bump prevention, rib holes are drilled for pressure relief purpose. The deformational behaviour of the pressure relief borehole is studied using distributed optical fiber sensing technology. The strain of the surrounding coal and the pressure relief range were measured from 0 hrs to 402 hrs after hole drilling. Based on the analysis of pressure relief procedure, combining with borehole observation, the crack development, limited equilibrium, collapse, and compaction stages of the borehole were estimated as 0∼72 h, 72∼190 h, 190∼402 h, and greater than 402 h, respectively. Consequently, the hole drilling is modified to 110 m ahead of the working face to achieve better pressure relief effect. Microseismic monitoring shows that, after hole drilling optimisation, the high-energy microseismic events and average energy of microseismic events are reduced significantly.http://dx.doi.org/10.1155/2021/1753551 |
| spellingShingle | Han Liang Jun Han Zuoqing Bi Application of Distributed Optical Fiber Technology for Coal Bump Prevention Shock and Vibration |
| title | Application of Distributed Optical Fiber Technology for Coal Bump Prevention |
| title_full | Application of Distributed Optical Fiber Technology for Coal Bump Prevention |
| title_fullStr | Application of Distributed Optical Fiber Technology for Coal Bump Prevention |
| title_full_unstemmed | Application of Distributed Optical Fiber Technology for Coal Bump Prevention |
| title_short | Application of Distributed Optical Fiber Technology for Coal Bump Prevention |
| title_sort | application of distributed optical fiber technology for coal bump prevention |
| url | http://dx.doi.org/10.1155/2021/1753551 |
| work_keys_str_mv | AT hanliang applicationofdistributedopticalfibertechnologyforcoalbumpprevention AT junhan applicationofdistributedopticalfibertechnologyforcoalbumpprevention AT zuoqingbi applicationofdistributedopticalfibertechnologyforcoalbumpprevention |