Stability analysis and support requirements for haulage drift in the vicinity of mined stopes
AbstractIn this study, combined empirical, numerical, and in-situ monitoring methods were combined to carry out stability analyses and support design for a haulage drift subjected to mining activity. The rock mass quality of the haulage drift was characterized by the RMR, Q, and GSI, and the rock ma...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Geomatics, Natural Hazards & Risk |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/19475705.2023.2265146 |
| _version_ | 1797389216337887232 |
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| author | Huaibin Li Changxiang Wang Xinzhu Hua Xingdong Zhao Bibo Dai Zujun Huang |
| author_facet | Huaibin Li Changxiang Wang Xinzhu Hua Xingdong Zhao Bibo Dai Zujun Huang |
| author_sort | Huaibin Li |
| collection | DOAJ |
| description | AbstractIn this study, combined empirical, numerical, and in-situ monitoring methods were combined to carry out stability analyses and support design for a haulage drift subjected to mining activity. The rock mass quality of the haulage drift was characterized by the RMR, Q, and GSI, and the rock mass properties were calculated. The support requirements for haulage drift during mining were determined by rock mass classification systems. RS2 was used to analyze the plastic zone and displacement of the haulage drift during mining. After the stope was mined, the surrounding rock exhibited a butterfly plastic zone with an asymmetric distribution, and the roof damage was most severe near the stope side. Overall, the haulage drift tended to move in the stope direction, which is consistent with engineering expectations. The support systems determined using the empirical method were analyzed using RS2 and UNWEDGE software. The maximum plastic zone depth of the roof decreased from 4.2 to 2.01 m, and the safety factor of the unstable wedge block increased from 0 to 10.2 after support. In-situ drilling detection shows that the failure depth of the haulage drift roof is 2.37 m. Therefore, a combination of empirical, numerical, and in-situ monitoring methods can be effective for quantitative stability assessments and support design optimization of haulage drifts in the vicinity of mined stopes. |
| first_indexed | 2024-03-08T22:52:38Z |
| format | Article |
| id | doaj.art-8737ce5d8e3c4f30bb49d09378580278 |
| institution | Directory Open Access Journal |
| issn | 1947-5705 1947-5713 |
| language | English |
| last_indexed | 2024-03-08T22:52:38Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geomatics, Natural Hazards & Risk |
| spelling | doaj.art-8737ce5d8e3c4f30bb49d093785802782023-12-16T08:49:46ZengTaylor & Francis GroupGeomatics, Natural Hazards & Risk1947-57051947-57132023-12-0114110.1080/19475705.2023.2265146Stability analysis and support requirements for haulage drift in the vicinity of mined stopesHuaibin Li0Changxiang Wang1Xinzhu Hua2Xingdong Zhao3Bibo Dai4Zujun Huang5School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan, ChinaSchool of Safety Science and Engineering, Anhui University of Science and Technology, Huainan, ChinaSchool of Mining Engineering, Anhui University of Science and Technology, Huainan, ChinaKey Laboratory of Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, ChinaState Key Laboratory of Safety and Health for Metal Mines, Maanshan, ChinaZhuxianzhuang Coal Mine of Huaibei Mining (Group) Co., Ltd., Suzhou, ChinaAbstractIn this study, combined empirical, numerical, and in-situ monitoring methods were combined to carry out stability analyses and support design for a haulage drift subjected to mining activity. The rock mass quality of the haulage drift was characterized by the RMR, Q, and GSI, and the rock mass properties were calculated. The support requirements for haulage drift during mining were determined by rock mass classification systems. RS2 was used to analyze the plastic zone and displacement of the haulage drift during mining. After the stope was mined, the surrounding rock exhibited a butterfly plastic zone with an asymmetric distribution, and the roof damage was most severe near the stope side. Overall, the haulage drift tended to move in the stope direction, which is consistent with engineering expectations. The support systems determined using the empirical method were analyzed using RS2 and UNWEDGE software. The maximum plastic zone depth of the roof decreased from 4.2 to 2.01 m, and the safety factor of the unstable wedge block increased from 0 to 10.2 after support. In-situ drilling detection shows that the failure depth of the haulage drift roof is 2.37 m. Therefore, a combination of empirical, numerical, and in-situ monitoring methods can be effective for quantitative stability assessments and support design optimization of haulage drifts in the vicinity of mined stopes.https://www.tandfonline.com/doi/10.1080/19475705.2023.2265146Rock mass classificationnumerical modellingstability analysissupport designhaulage driftsmining |
| spellingShingle | Huaibin Li Changxiang Wang Xinzhu Hua Xingdong Zhao Bibo Dai Zujun Huang Stability analysis and support requirements for haulage drift in the vicinity of mined stopes Geomatics, Natural Hazards & Risk Rock mass classification numerical modelling stability analysis support design haulage drifts mining |
| title | Stability analysis and support requirements for haulage drift in the vicinity of mined stopes |
| title_full | Stability analysis and support requirements for haulage drift in the vicinity of mined stopes |
| title_fullStr | Stability analysis and support requirements for haulage drift in the vicinity of mined stopes |
| title_full_unstemmed | Stability analysis and support requirements for haulage drift in the vicinity of mined stopes |
| title_short | Stability analysis and support requirements for haulage drift in the vicinity of mined stopes |
| title_sort | stability analysis and support requirements for haulage drift in the vicinity of mined stopes |
| topic | Rock mass classification numerical modelling stability analysis support design haulage drifts mining |
| url | https://www.tandfonline.com/doi/10.1080/19475705.2023.2265146 |
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