Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model
Aiming at the broken failure of anchor cable in the mining roadway roof during the mining process, the lagging support scheme of anchor cable is proposed. Based on the results of indoor anchor cable pull-out test, the Cable element in FLAC3D is modified to realize the extension breaking of anchor ca...
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| Main Authors: | , , , |
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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/10.1155/2021/9919454 |
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| author | Xiangyu Wang Guanghui Wang Bowen Wu Shuaigang Liu |
| author_facet | Xiangyu Wang Guanghui Wang Bowen Wu Shuaigang Liu |
| author_sort | Xiangyu Wang |
| collection | DOAJ |
| description | Aiming at the broken failure of anchor cable in the mining roadway roof during the mining process, the lagging support scheme of anchor cable is proposed. Based on the results of indoor anchor cable pull-out test, the Cable element in FLAC3D is modified to realize the extension breaking of anchor cable in the calculation process. Furthermore, the minimum principal stress and volume strain rate mutation point are used as the failure criteria of the anchor cable. Through the comparative analysis of five anchor cable lagging support schemes of 6208 transport tunnel in Wangzhuang Mine Coal, the results demonstrate that the lagging support reduces the initial support resistance of the supporting structure. With the increase of lagging time, the ability of anchor cable to adapt to deformation increases gradually. When the lagging time reaches the gentle area of roadway deformation, its ability to adapt to deformation remains stable. Finally, it was determined that the support should start at 10–15 m of the anchor cable lagging head of the 6208 transport tunnel. Industrial tests show that the lagging support scheme ensures that the anchor cable can withstand a certain deformation, and the support body has no broken failure, which effectively controls the large mining-induced deformation of surrounding rock. |
| format | Article |
| id | doaj-art-8068cee44b3f41e79e8146eb9023af62 |
| 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-8068cee44b3f41e79e8146eb9023af622025-02-03T06:10:46ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99194549919454Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified ModelXiangyu Wang0Guanghui Wang1Bowen Wu2Shuaigang Liu3School of Mines, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining & Technology, Xuzhou 221116, ChinaAiming at the broken failure of anchor cable in the mining roadway roof during the mining process, the lagging support scheme of anchor cable is proposed. Based on the results of indoor anchor cable pull-out test, the Cable element in FLAC3D is modified to realize the extension breaking of anchor cable in the calculation process. Furthermore, the minimum principal stress and volume strain rate mutation point are used as the failure criteria of the anchor cable. Through the comparative analysis of five anchor cable lagging support schemes of 6208 transport tunnel in Wangzhuang Mine Coal, the results demonstrate that the lagging support reduces the initial support resistance of the supporting structure. With the increase of lagging time, the ability of anchor cable to adapt to deformation increases gradually. When the lagging time reaches the gentle area of roadway deformation, its ability to adapt to deformation remains stable. Finally, it was determined that the support should start at 10–15 m of the anchor cable lagging head of the 6208 transport tunnel. Industrial tests show that the lagging support scheme ensures that the anchor cable can withstand a certain deformation, and the support body has no broken failure, which effectively controls the large mining-induced deformation of surrounding rock.http://dx.doi.org/10.1155/2021/9919454 |
| spellingShingle | Xiangyu Wang Guanghui Wang Bowen Wu Shuaigang Liu Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model Advances in Civil Engineering |
| title | Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model |
| title_full | Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model |
| title_fullStr | Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model |
| title_full_unstemmed | Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model |
| title_short | Study on the Lagging Support Mechanism of Anchor Cable in Coal Roadway Based on FLAC3D Modified Model |
| title_sort | study on the lagging support mechanism of anchor cable in coal roadway based on flac3d modified model |
| url | http://dx.doi.org/10.1155/2021/9919454 |
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