Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst
Abstract The mechanism of rock burst induced by the superposition of dynamic and static loads in multicoal seam mining is unique. To investigate the propagation attenuation law of large‐energy microseismic events and the induced mechanism of rock burst under this condition, this study employs FLAC3D...
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| Format: | Article |
| Language: | English |
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Wiley
2024-11-01
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| Series: | Energy Science & Engineering |
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| Online Access: | https://doi.org/10.1002/ese3.1904 |
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| _version_ | 1841557242252361728 |
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| author | Hongwei Mu Yongliang Zhang Mingzhong Gao Quanlin Zhu Jingbo Li Jinfeng Cao Wentao Fan |
| author_facet | Hongwei Mu Yongliang Zhang Mingzhong Gao Quanlin Zhu Jingbo Li Jinfeng Cao Wentao Fan |
| author_sort | Hongwei Mu |
| collection | DOAJ |
| description | Abstract The mechanism of rock burst induced by the superposition of dynamic and static loads in multicoal seam mining is unique. To investigate the propagation attenuation law of large‐energy microseismic events and the induced mechanism of rock burst under this condition, this study employs FLAC3D's dynamic module to simulate and analyze the influence of propagation distance, overburden structure in multicoal seam mining, and interlayer plastic zone on vibration wave attenuation. Results indicate that when coal seams are mined at close distances, vibration waves experience significant attenuation while passing through the plastic zone between two layers of coal. At equal attenuation distances, multicoal seam mining structures exhibit greater effects on vibration wave attenuation. Considering differences between rock‐burst induction mechanisms in close‐distance coal seam group mining versus single coal seam mining, a discriminant criterion for rock bursts induced by superimposed dynamic and static loads in multicoal seam mining is established along with a monitoring and early warning method suitable for such conditions. |
| format | Article |
| id | doaj-art-76d8eb74b99947088100192d8ff3ed41 |
| institution | Kabale University |
| issn | 2050-0505 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | Energy Science & Engineering |
| spelling | doaj-art-76d8eb74b99947088100192d8ff3ed412025-01-06T14:45:33ZengWileyEnergy Science & Engineering2050-05052024-11-0112114932494910.1002/ese3.1904Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burstHongwei Mu0Yongliang Zhang1Mingzhong Gao2Quanlin Zhu3Jingbo Li4Jinfeng Cao5Wentao Fan6School of Mechanical and Automotive Engineering Qingdao University of Technology Qingdao Shandong ChinaSchool of Mechanical and Automotive Engineering Qingdao University of Technology Qingdao Shandong ChinaGuangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy, College of Civil and Transportation Engineering Shenzhen University Shenzhen ChinaSchool of Mechanical and Automotive Engineering Qingdao University of Technology Qingdao Shandong ChinaShandong Gold Jinchuang Group Co. Ltd. Jinan Shandong ChinaSchool of Mechanical and Automotive Engineering Qingdao University of Technology Qingdao Shandong ChinaShandong Gold Jinchuang Group Co. Ltd. Jinan Shandong ChinaAbstract The mechanism of rock burst induced by the superposition of dynamic and static loads in multicoal seam mining is unique. To investigate the propagation attenuation law of large‐energy microseismic events and the induced mechanism of rock burst under this condition, this study employs FLAC3D's dynamic module to simulate and analyze the influence of propagation distance, overburden structure in multicoal seam mining, and interlayer plastic zone on vibration wave attenuation. Results indicate that when coal seams are mined at close distances, vibration waves experience significant attenuation while passing through the plastic zone between two layers of coal. At equal attenuation distances, multicoal seam mining structures exhibit greater effects on vibration wave attenuation. Considering differences between rock‐burst induction mechanisms in close‐distance coal seam group mining versus single coal seam mining, a discriminant criterion for rock bursts induced by superimposed dynamic and static loads in multicoal seam mining is established along with a monitoring and early warning method suitable for such conditions.https://doi.org/10.1002/ese3.1904monitoring and early warningmultiple coal seamsrock burstseismic energy |
| spellingShingle | Hongwei Mu Yongliang Zhang Mingzhong Gao Quanlin Zhu Jingbo Li Jinfeng Cao Wentao Fan Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst Energy Science & Engineering monitoring and early warning multiple coal seams rock burst seismic energy |
| title | Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst |
| title_full | Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst |
| title_fullStr | Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst |
| title_full_unstemmed | Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst |
| title_short | Research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst |
| title_sort | research on the attenuation characteristics of seismic energy in multicoal seam mining and the warning method of rock burst |
| topic | monitoring and early warning multiple coal seams rock burst seismic energy |
| url | https://doi.org/10.1002/ese3.1904 |
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