Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining
The secondary lining failure of deep buried soft rock tunnel often occurs, which is obviously related to the time factor. The formation mechanism of this phenomenon is studied in this paper. Therefore, the combination of in situ stress measurement and neural network inversion is used to analyze the...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/4614265 |
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| _version_ | 1832560681525706752 |
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| author | Xiaoqian Zhang Chengmin Wei Heng Zhang |
| author_facet | Xiaoqian Zhang Chengmin Wei Heng Zhang |
| author_sort | Xiaoqian Zhang |
| collection | DOAJ |
| description | The secondary lining failure of deep buried soft rock tunnel often occurs, which is obviously related to the time factor. The formation mechanism of this phenomenon is studied in this paper. Therefore, the combination of in situ stress measurement and neural network inversion is used to analyze the distribution characteristics of in situ stress. At the same time, the creep characteristics of surrounding rock are tested in laboratory, and the key parameters are obtained. Combined with the characteristics of surrounding rock, the calculation model is established by using discrete element simulation technology and considering the joints of surrounding rock. According to the above multiple information, the stress characteristics of the secondary lining in different time periods are analyzed creatively. Finally, the method of setting arch and adding anchor bolt in key parts is proposed, and significant effect results are obtained. |
| format | Article |
| id | doaj-art-940980e541744637921838b47d77541d |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-940980e541744637921838b47d77541d2025-02-03T01:27:01ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/46142654614265Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary LiningXiaoqian Zhang0Chengmin Wei1Heng Zhang2School of Architecture & Civil Engineering, Liaocheng University, Liaocheng, Shandong 252059, ChinaCollege of Emergency Management and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaCollege of Emergency Management and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaThe secondary lining failure of deep buried soft rock tunnel often occurs, which is obviously related to the time factor. The formation mechanism of this phenomenon is studied in this paper. Therefore, the combination of in situ stress measurement and neural network inversion is used to analyze the distribution characteristics of in situ stress. At the same time, the creep characteristics of surrounding rock are tested in laboratory, and the key parameters are obtained. Combined with the characteristics of surrounding rock, the calculation model is established by using discrete element simulation technology and considering the joints of surrounding rock. According to the above multiple information, the stress characteristics of the secondary lining in different time periods are analyzed creatively. Finally, the method of setting arch and adding anchor bolt in key parts is proposed, and significant effect results are obtained.http://dx.doi.org/10.1155/2021/4614265 |
| spellingShingle | Xiaoqian Zhang Chengmin Wei Heng Zhang Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining Shock and Vibration |
| title | Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining |
| title_full | Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining |
| title_fullStr | Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining |
| title_full_unstemmed | Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining |
| title_short | Analysis of Surrounding Rock Creep Effect on the Long-Term Stability of Tunnel Secondary Lining |
| title_sort | analysis of surrounding rock creep effect on the long term stability of tunnel secondary lining |
| url | http://dx.doi.org/10.1155/2021/4614265 |
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