Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber
Lining is often used as the last line of defense in deep large section chamber. Under the asymmetric load, it is easy to damage, resulting in the overall repair of the chamber. Aiming at this problem, taking the pump house in Wanfu Coal Mine under construction in China as an engineering example, we...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/14/4075 |
| _version_ | 1797527215332655104 |
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| author | Yubing Huang Bei Jiang Yukun Ma Huayong Wei Jincheng Zang Xiang Gao |
| author_facet | Yubing Huang Bei Jiang Yukun Ma Huayong Wei Jincheng Zang Xiang Gao |
| author_sort | Yubing Huang |
| collection | DOAJ |
| description | Lining is often used as the last line of defense in deep large section chamber. Under the asymmetric load, it is easy to damage, resulting in the overall repair of the chamber. Aiming at this problem, taking the pump house in Wanfu Coal Mine under construction in China as an engineering example, we analyzed the asymmetric failure of pump house lining caused by construction disturbance, established the lining mechanical model and quantitative evaluation indexes, such as bending moment change rate, bending moment balance rate, displacement change rate and displacement balance rate, studied the influence mechanism of asymmetrical coefficient, section size and lining thickness on the mechanical behavior of lining, and proposed the control measures of deep large section chamber with the core of “strengthening asymmetric support, reducing section size and improving lining strength”. The field monitoring shows that the asymmetric deformation of the pump house is effectively controlled, and the maximum displacement is only 7.3 mm, which ensures the long-term stability of the chamber. |
| first_indexed | 2024-03-10T09:40:51Z |
| format | Article |
| id | doaj.art-1c18abc5ce474d7d97fd7da408ee22d5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T09:40:51Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-1c18abc5ce474d7d97fd7da408ee22d52023-11-22T03:39:37ZengMDPI AGEnergies1996-10732021-07-011414407510.3390/en14144075Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section ChamberYubing Huang0Bei Jiang1Yukun Ma2Huayong Wei3Jincheng Zang4Xiang Gao5Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, ChinaStake Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaResearch Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, ChinaStake Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaYanmei Wanfu Energy Co., Ltd., Heze 274922, ChinaYanmei Wanfu Energy Co., Ltd., Heze 274922, ChinaLining is often used as the last line of defense in deep large section chamber. Under the asymmetric load, it is easy to damage, resulting in the overall repair of the chamber. Aiming at this problem, taking the pump house in Wanfu Coal Mine under construction in China as an engineering example, we analyzed the asymmetric failure of pump house lining caused by construction disturbance, established the lining mechanical model and quantitative evaluation indexes, such as bending moment change rate, bending moment balance rate, displacement change rate and displacement balance rate, studied the influence mechanism of asymmetrical coefficient, section size and lining thickness on the mechanical behavior of lining, and proposed the control measures of deep large section chamber with the core of “strengthening asymmetric support, reducing section size and improving lining strength”. The field monitoring shows that the asymmetric deformation of the pump house is effectively controlled, and the maximum displacement is only 7.3 mm, which ensures the long-term stability of the chamber.https://www.mdpi.com/1996-1073/14/14/4075deep chamberasymmetric failuremechanical analysiscontrol measures |
| spellingShingle | Yubing Huang Bei Jiang Yukun Ma Huayong Wei Jincheng Zang Xiang Gao Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber Energies deep chamber asymmetric failure mechanical analysis control measures |
| title | Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber |
| title_full | Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber |
| title_fullStr | Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber |
| title_full_unstemmed | Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber |
| title_short | Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber |
| title_sort | study on asymmetric failure and control measures of lining in deep large section chamber |
| topic | deep chamber asymmetric failure mechanical analysis control measures |
| url | https://www.mdpi.com/1996-1073/14/14/4075 |
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