Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock
In order to understand the instability characteristics of surrounding rock in the process of deep roadway excavation, a three-dimensional numerical model was established by FLAC3D to systematically analyze the influence of roadway surrounding rock stability under different in situ stress distributio...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/3570523 |
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| _version_ | 1832548571925184512 |
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| author | Tao Li Hao Gong Guoliang Xu |
| author_facet | Tao Li Hao Gong Guoliang Xu |
| author_sort | Tao Li |
| collection | DOAJ |
| description | In order to understand the instability characteristics of surrounding rock in the process of deep roadway excavation, a three-dimensional numerical model was established by FLAC3D to systematically analyze the influence of roadway surrounding rock stability under different in situ stress distribution forms, and the environmental coefficient of mining-induced stress η was defined, the larger the environmental coefficient of mining-induced stress is, the larger the surrounding rock stress environment is, and the range where the η coefficient is greater than 0.2 is called with the destruction-danger zone. When the initial vertical stress is maximum principal stress and minimum principal stress, by comparing the roadway along the middle ground stress direction and minimum or maximum in-situ stress direction, the variation characteristics of displacement, failure zone and failure hazard zone of roadway surrounding rock are obtained, which provides theoretical basis for the treatment of disaster accidents such as roadway surrounding rock instability and rock burst caused by deep high in-situ stress. |
| format | Article |
| id | doaj-art-cfe88d49ead74c7288e6130ff6ed0eca |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-cfe88d49ead74c7288e6130ff6ed0eca2025-02-03T06:13:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/35705233570523Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding RockTao Li0Hao Gong1Guoliang Xu2School of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaSchool of Energy and Mining Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaIn order to understand the instability characteristics of surrounding rock in the process of deep roadway excavation, a three-dimensional numerical model was established by FLAC3D to systematically analyze the influence of roadway surrounding rock stability under different in situ stress distribution forms, and the environmental coefficient of mining-induced stress η was defined, the larger the environmental coefficient of mining-induced stress is, the larger the surrounding rock stress environment is, and the range where the η coefficient is greater than 0.2 is called with the destruction-danger zone. When the initial vertical stress is maximum principal stress and minimum principal stress, by comparing the roadway along the middle ground stress direction and minimum or maximum in-situ stress direction, the variation characteristics of displacement, failure zone and failure hazard zone of roadway surrounding rock are obtained, which provides theoretical basis for the treatment of disaster accidents such as roadway surrounding rock instability and rock burst caused by deep high in-situ stress.http://dx.doi.org/10.1155/2021/3570523 |
| spellingShingle | Tao Li Hao Gong Guoliang Xu Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock Advances in Civil Engineering |
| title | Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock |
| title_full | Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock |
| title_fullStr | Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock |
| title_full_unstemmed | Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock |
| title_short | Study on the Influence of In Situ Stress Distribution on the Stability of Roadway Surrounding Rock |
| title_sort | study on the influence of in situ stress distribution on the stability of roadway surrounding rock |
| url | http://dx.doi.org/10.1155/2021/3570523 |
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