Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress
With the increase of mining intensity of coal resources, some coal mines in China have gradually entered the deep mining stage. The complexity of the stress environment of the deep rock stratum leads to the difficulty of coal mining. Among them, the control of the deep roadway is one of the bottlene...
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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/10.1155/2020/8829651 |
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| _version_ | 1849693873106845696 |
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| author | Yang Yu Dingchao Chen Xiangqian Zhao Xiangyu Wang Lianying Zhang Siyu Zhu |
| author_facet | Yang Yu Dingchao Chen Xiangqian Zhao Xiangyu Wang Lianying Zhang Siyu Zhu |
| author_sort | Yang Yu |
| collection | DOAJ |
| description | With the increase of mining intensity of coal resources, some coal mines in China have gradually entered the deep mining stage. The complexity of the stress environment of the deep rock stratum leads to the difficulty of coal mining. Among them, the control of the deep roadway is one of the bottlenecks restricting the safety mining of the deep coal resources in China. By means of statistical analysis, the factors affecting the stability of the deep roadway were summed up: roadway occurrence environment, driving disturbance, and support means. The mechanical model of the deep roadway was established with the theory of elastic-plastic mechanics, the distribution characteristics of the plastic zone of the roadway were revealed, and the influence laws of lateral pressure coefficient, vertical stress, and support strength on the stability of the roadway were analyzed. Through numerical simulation, the law of stress, displacement and the plastic zone distribution evolution of the deep roadway, the mechanism of horizontal stress, and the mechanism of bolt support on the roadway were studied. On this basis, the safety control strategies to ensure the stability of the deep roadway were put forward: improving the strength of the roof and floor, especially the bearing part of the top angle and the side angle, enhancing the stability of the two sides of the roadway and controlling the floor heave, and making the surrounding rock of the deep roadway release pressure moderately, so as to make the roadway easy to be maintained under the low stress environment. These meaningful references were provided for the exploitation of deep coal resources in China. |
| format | Article |
| id | doaj-art-4f9ccd1fcf3142258485abdbfa14d57d |
| institution | DOAJ |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-4f9ccd1fcf3142258485abdbfa14d57d2025-08-20T03:20:16ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88296518829651Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex StressYang Yu0Dingchao Chen1Xiangqian Zhao2Xiangyu Wang3Lianying Zhang4Siyu Zhu5College of Civil Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221111, ChinaCollege of Civil Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221111, ChinaCollege of Civil Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221111, ChinaSchool of Mines, China University of Mining & Technology, Xuzhou, Jiangsu 221116, ChinaCollege of Civil Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221111, ChinaCollege of Civil Engineering, Xuzhou University of Technology, Xuzhou, Jiangsu 221111, ChinaWith the increase of mining intensity of coal resources, some coal mines in China have gradually entered the deep mining stage. The complexity of the stress environment of the deep rock stratum leads to the difficulty of coal mining. Among them, the control of the deep roadway is one of the bottlenecks restricting the safety mining of the deep coal resources in China. By means of statistical analysis, the factors affecting the stability of the deep roadway were summed up: roadway occurrence environment, driving disturbance, and support means. The mechanical model of the deep roadway was established with the theory of elastic-plastic mechanics, the distribution characteristics of the plastic zone of the roadway were revealed, and the influence laws of lateral pressure coefficient, vertical stress, and support strength on the stability of the roadway were analyzed. Through numerical simulation, the law of stress, displacement and the plastic zone distribution evolution of the deep roadway, the mechanism of horizontal stress, and the mechanism of bolt support on the roadway were studied. On this basis, the safety control strategies to ensure the stability of the deep roadway were put forward: improving the strength of the roof and floor, especially the bearing part of the top angle and the side angle, enhancing the stability of the two sides of the roadway and controlling the floor heave, and making the surrounding rock of the deep roadway release pressure moderately, so as to make the roadway easy to be maintained under the low stress environment. These meaningful references were provided for the exploitation of deep coal resources in China.http://dx.doi.org/10.1155/2020/8829651 |
| spellingShingle | Yang Yu Dingchao Chen Xiangqian Zhao Xiangyu Wang Lianying Zhang Siyu Zhu Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress Advances in Civil Engineering |
| title | Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress |
| title_full | Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress |
| title_fullStr | Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress |
| title_full_unstemmed | Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress |
| title_short | Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress |
| title_sort | stabilization mechanism and safety control strategy of the deep roadway with complex stress |
| url | http://dx.doi.org/10.1155/2020/8829651 |
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