Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law
The results of the interaction between coal failure and mining pressure field evolution during mining are presented. Not only the mechanical model of stope and its relative structure division, but also the failure and behavior characteristic of coal body under different mining stages are built and d...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/714507 |
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| _version_ | 1832565013010710528 |
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| author | Zhijie Wen Guanglong Qu Jinhao Wen Yongkui Shi Chuanyang Jia |
| author_facet | Zhijie Wen Guanglong Qu Jinhao Wen Yongkui Shi Chuanyang Jia |
| author_sort | Zhijie Wen |
| collection | DOAJ |
| description | The results of the interaction between coal failure and mining pressure field evolution during mining are presented. Not only the mechanical model of stope and its relative structure division, but also the failure and behavior characteristic of coal body under different mining stages are built and demonstrated. Namely, the breaking arch and stress arch which influence the mining area are quantified calculated. A systematic method of stress field distribution is worked out. All this indicates that the pore distribution of coal body with different compressed volume has fractal character; it appears to be the linear relationship between propagation range of internal stress field and compressed volume of coal body and nonlinear relationship between the range of outburst coal mass and the number of pores which is influenced by mining pressure. The results provide theory reference for the research on the range of mining-induced stress and broken coal wall. |
| format | Article |
| id | doaj-art-366a1b10ebef47cdac8a69d9f6c5dc22 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-366a1b10ebef47cdac8a69d9f6c5dc222025-02-03T01:09:36ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/714507714507Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution LawZhijie Wen0Guanglong Qu1Jinhao Wen2Yongkui Shi3Chuanyang Jia4State Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaState Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaThe results of the interaction between coal failure and mining pressure field evolution during mining are presented. Not only the mechanical model of stope and its relative structure division, but also the failure and behavior characteristic of coal body under different mining stages are built and demonstrated. Namely, the breaking arch and stress arch which influence the mining area are quantified calculated. A systematic method of stress field distribution is worked out. All this indicates that the pore distribution of coal body with different compressed volume has fractal character; it appears to be the linear relationship between propagation range of internal stress field and compressed volume of coal body and nonlinear relationship between the range of outburst coal mass and the number of pores which is influenced by mining pressure. The results provide theory reference for the research on the range of mining-induced stress and broken coal wall.http://dx.doi.org/10.1155/2014/714507 |
| spellingShingle | Zhijie Wen Guanglong Qu Jinhao Wen Yongkui Shi Chuanyang Jia Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law The Scientific World Journal |
| title | Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law |
| title_full | Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law |
| title_fullStr | Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law |
| title_full_unstemmed | Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law |
| title_short | Deformation Failure Characteristics of Coal Body and Mining Induced Stress Evolution Law |
| title_sort | deformation failure characteristics of coal body and mining induced stress evolution law |
| url | http://dx.doi.org/10.1155/2014/714507 |
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