Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst
In China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of coal-gas outburst under the coupling action of stress and gas. Results show that increasing ei...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/1052618 |
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| _version_ | 1832560660423114752 |
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| author | Fengxiang Nie Honglei Wang Liming Qiu |
| author_facet | Fengxiang Nie Honglei Wang Liming Qiu |
| author_sort | Fengxiang Nie |
| collection | DOAJ |
| description | In China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of coal-gas outburst under the coupling action of stress and gas. Results show that increasing either gas pressure or in-situ stress can make coal destroy and destabilize, and the contribution of gas pressure to coal failure is twice that of in-situ stress. In ultradeep coal mining, coal-gas outburst may occur even under the condition of low gas pressure due to large in-situ stress. Moreover, the larger the mining depth is, the lower the gas index is required for disaster occurrence. The results have certain guiding significance for coal energy mining and the control of coal-gas outburst in deep coal mining. |
| format | Article |
| id | doaj-art-44d3b0b97f154fbcb6d64f0a385b4708 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-44d3b0b97f154fbcb6d64f0a385b47082025-02-03T01:27:05ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/10526181052618Research on the Disaster-Inducing Mechanism of Coal-Gas OutburstFengxiang Nie0Honglei Wang1Liming Qiu2School of Resources and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Civil and Environmental Engineering, University of Science & Technology Beijing, Beijing 100083, ChinaSchool of Civil and Environmental Engineering, University of Science & Technology Beijing, Beijing 100083, ChinaIn China, coal-gas outburst is seriously affecting safety of the coal mine. To improve the safety status of underground coal mining, this work investigated the evolution process and occurrence mechanism of coal-gas outburst under the coupling action of stress and gas. Results show that increasing either gas pressure or in-situ stress can make coal destroy and destabilize, and the contribution of gas pressure to coal failure is twice that of in-situ stress. In ultradeep coal mining, coal-gas outburst may occur even under the condition of low gas pressure due to large in-situ stress. Moreover, the larger the mining depth is, the lower the gas index is required for disaster occurrence. The results have certain guiding significance for coal energy mining and the control of coal-gas outburst in deep coal mining.http://dx.doi.org/10.1155/2020/1052618 |
| spellingShingle | Fengxiang Nie Honglei Wang Liming Qiu Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst Advances in Civil Engineering |
| title | Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst |
| title_full | Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst |
| title_fullStr | Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst |
| title_full_unstemmed | Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst |
| title_short | Research on the Disaster-Inducing Mechanism of Coal-Gas Outburst |
| title_sort | research on the disaster inducing mechanism of coal gas outburst |
| url | http://dx.doi.org/10.1155/2020/1052618 |
| work_keys_str_mv | AT fengxiangnie researchonthedisasterinducingmechanismofcoalgasoutburst AT hongleiwang researchonthedisasterinducingmechanismofcoalgasoutburst AT limingqiu researchonthedisasterinducingmechanismofcoalgasoutburst |