Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area
This paper presents an integrated approach for mathematical statistics, theoretical analysis, and a field test to investigate the distribution law of in-situ stress and its engineering practice of rock burst control. The test site is located in the Juye mining area, Shandong Province, China. The mai...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/4/1267 |
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| author | Guangchao Zhang You Li Xiangjun Meng Guangzhe Tao Lei Wang Hanqing Guo Chuanqi Zhu Hao Zuo Zhi Qu |
| author_facet | Guangchao Zhang You Li Xiangjun Meng Guangzhe Tao Lei Wang Hanqing Guo Chuanqi Zhu Hao Zuo Zhi Qu |
| author_sort | Guangchao Zhang |
| collection | DOAJ |
| description | This paper presents an integrated approach for mathematical statistics, theoretical analysis, and a field test to investigate the distribution law of in-situ stress and its engineering practice of rock burst control. The test site is located in the Juye mining area, Shandong Province, China. The main conclusions included: (1) There are two types of in-situ stress states in the Juye mining area, <i>σ<sub>H</sub> > σ<sub>V</sub> > σ<sub>h</sub></i> (42.42%) and <i>σ<sub>H</sub> > σ<sub>h</sub> > σ<sub>V</sub></i> (57.57%), which are mainly caused by the tectonic stress of the Heze and Fushan faults (The <i>σ<sub>H</sub>, σ<sub>V,</sub> and σ<sub>h</sub></i> is the maximum principal stress, vertical principal stress or intermediate principal stress and minimum principal stress respectively). (2) The lateral pressure coefficients <i>K<sub>H</sub></i>, <i>K<sub>h</sub></i>, and <i>K<sub>av</sub></i> show a non-linear distribution with increased depth, approaching 1.32, 0.96, and 1.41, respectively. The variation range of the horizontal difference stress <i>μ<sub>d</sub></i> is 0.09–0.58. (3) The average value of the stress gradient is 3.05 MPa/100 m, and the main directions of the maximum horizontal principal stress are northeast–southwest, and northwest–southeast. (4) A new combined supporting strategy, incorporating optimization of roadway layout, anti-impact support system design, and local reasonable pressure relief, was proposed for the rock burst control, and its validity was verified via field monitoring. All these design principles and support strategies for the rock burst control presented in this study can potentially be applied to other similar projects. |
| first_indexed | 2024-03-09T22:05:22Z |
| format | Article |
| id | doaj.art-3a1727c93d5d445885b685be7dd007b6 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T22:05:22Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3a1727c93d5d445885b685be7dd007b62023-11-23T19:41:22ZengMDPI AGEnergies1996-10732022-02-01154126710.3390/en15041267Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining AreaGuangchao Zhang0You Li1Xiangjun Meng2Guangzhe Tao3Lei Wang4Hanqing Guo5Chuanqi Zhu6Hao Zuo7Zhi Qu8College of Energy and Mining Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaState Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001, ChinaShandong Energy Group Co., Ltd., Jinan 250014, ChinaState Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001, ChinaCollege of Energy and Mining Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science & Technology, Qingdao 266590, ChinaThis paper presents an integrated approach for mathematical statistics, theoretical analysis, and a field test to investigate the distribution law of in-situ stress and its engineering practice of rock burst control. The test site is located in the Juye mining area, Shandong Province, China. The main conclusions included: (1) There are two types of in-situ stress states in the Juye mining area, <i>σ<sub>H</sub> > σ<sub>V</sub> > σ<sub>h</sub></i> (42.42%) and <i>σ<sub>H</sub> > σ<sub>h</sub> > σ<sub>V</sub></i> (57.57%), which are mainly caused by the tectonic stress of the Heze and Fushan faults (The <i>σ<sub>H</sub>, σ<sub>V,</sub> and σ<sub>h</sub></i> is the maximum principal stress, vertical principal stress or intermediate principal stress and minimum principal stress respectively). (2) The lateral pressure coefficients <i>K<sub>H</sub></i>, <i>K<sub>h</sub></i>, and <i>K<sub>av</sub></i> show a non-linear distribution with increased depth, approaching 1.32, 0.96, and 1.41, respectively. The variation range of the horizontal difference stress <i>μ<sub>d</sub></i> is 0.09–0.58. (3) The average value of the stress gradient is 3.05 MPa/100 m, and the main directions of the maximum horizontal principal stress are northeast–southwest, and northwest–southeast. (4) A new combined supporting strategy, incorporating optimization of roadway layout, anti-impact support system design, and local reasonable pressure relief, was proposed for the rock burst control, and its validity was verified via field monitoring. All these design principles and support strategies for the rock burst control presented in this study can potentially be applied to other similar projects.https://www.mdpi.com/1996-1073/15/4/1267coal resourcescoal miningcoal roadway supportJuye mining areain-situ stressrock burst |
| spellingShingle | Guangchao Zhang You Li Xiangjun Meng Guangzhe Tao Lei Wang Hanqing Guo Chuanqi Zhu Hao Zuo Zhi Qu Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area Energies coal resources coal mining coal roadway support Juye mining area in-situ stress rock burst |
| title | Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area |
| title_full | Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area |
| title_fullStr | Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area |
| title_full_unstemmed | Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area |
| title_short | Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area |
| title_sort | distribution law of in situ stress and its engineering application in rock burst control in juye mining area |
| topic | coal resources coal mining coal roadway support Juye mining area in-situ stress rock burst |
| url | https://www.mdpi.com/1996-1073/15/4/1267 |
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