Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area
Stress concentration caused by tectonic stress and mining disturbance in coal mines induces a unique type of rock burst. No. 3201 working face controlled by an anticline structure in the Shandong mining area is used as the research background. The formation mechanism for anticlines is analyzed. Theo...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2632549 |
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| _version_ | 1832566989310132224 |
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| author | Shitan Gu Zhimin Xiao Bangyou Jiang Ruifeng Huang Peng Shan |
| author_facet | Shitan Gu Zhimin Xiao Bangyou Jiang Ruifeng Huang Peng Shan |
| author_sort | Shitan Gu |
| collection | DOAJ |
| description | Stress concentration caused by tectonic stress and mining disturbance in coal mines induces a unique type of rock burst. No. 3201 working face controlled by an anticline structure in the Shandong mining area is used as the research background. The formation mechanism for anticlines is analyzed. Theoretical research shows that the bigger the tectonic couple is, the smaller the foundation stiffness, and the greater the bending degree and elastic strain energy of the coal will be. The distribution characteristics of abutment pressure and maximum principle stress in anticlinal control areas are analyzed using UDEC numerical software. The results show that rock bursts result from interactions between abutment pressure and residual tectonic stress. The “connection-overlay-separation” phenomenon of abutment pressure presents with working face advancement. Furthermore, the energy criterion for rock burst initiation is established based on the energy principle. Residual energy “E0−EC” and rock burst danger characteristics during mining are discussed. Based on the simulation results, microseismic monitoring data for No. 3201 working face are analyzed, and the law of microseismic energy is consistent with the variation law for the residual energy “E0−EC” at the peak of the simulated abutment pressure. The microseismic energy and frequency are higher during mining, increasing the risk of rock burst events. It can provide scientific basis for prevention and control of rock burst. |
| format | Article |
| id | doaj-art-c0d45d01491d4e12bcbf07a1c733207c |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-c0d45d01491d4e12bcbf07a1c733207c2025-02-03T01:02:38ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/26325492632549Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control AreaShitan Gu0Zhimin Xiao1Bangyou Jiang2Ruifeng Huang3Peng Shan4State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaState Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaInner Mongolia Urban Planning and Municipal Engineering Design Research Institute, Hohhot 010070, ChinaCollege of Civil and Transportation Engineering, Hohai University, Nanjing 210098, ChinaStress concentration caused by tectonic stress and mining disturbance in coal mines induces a unique type of rock burst. No. 3201 working face controlled by an anticline structure in the Shandong mining area is used as the research background. The formation mechanism for anticlines is analyzed. Theoretical research shows that the bigger the tectonic couple is, the smaller the foundation stiffness, and the greater the bending degree and elastic strain energy of the coal will be. The distribution characteristics of abutment pressure and maximum principle stress in anticlinal control areas are analyzed using UDEC numerical software. The results show that rock bursts result from interactions between abutment pressure and residual tectonic stress. The “connection-overlay-separation” phenomenon of abutment pressure presents with working face advancement. Furthermore, the energy criterion for rock burst initiation is established based on the energy principle. Residual energy “E0−EC” and rock burst danger characteristics during mining are discussed. Based on the simulation results, microseismic monitoring data for No. 3201 working face are analyzed, and the law of microseismic energy is consistent with the variation law for the residual energy “E0−EC” at the peak of the simulated abutment pressure. The microseismic energy and frequency are higher during mining, increasing the risk of rock burst events. It can provide scientific basis for prevention and control of rock burst.http://dx.doi.org/10.1155/2018/2632549 |
| spellingShingle | Shitan Gu Zhimin Xiao Bangyou Jiang Ruifeng Huang Peng Shan Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area Advances in Civil Engineering |
| title | Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area |
| title_full | Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area |
| title_fullStr | Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area |
| title_full_unstemmed | Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area |
| title_short | Research of Rock Burst Risk Induced by Mining and Field Case in Anticlinal Control Area |
| title_sort | research of rock burst risk induced by mining and field case in anticlinal control area |
| url | http://dx.doi.org/10.1155/2018/2632549 |
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