Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber

Yubing Huang, Bei Jiang, Yukun Ma, Huayong Wei, Jincheng Zang and Xiang Gao
Additional contact information
Yubing Huang: Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China
Bei Jiang: Stake Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Yukun Ma: Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China
Huayong Wei: Stake Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Jincheng Zang: Yanmei Wanfu Energy Co., Ltd., Heze 274922, China
Xiang Gao: Yanmei Wanfu Energy Co., Ltd., Heze 274922, China

Energies, 2021, vol. 14, issue 14, 1-14

Abstract: 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.

Keywords: deep chamber; asymmetric failure; mechanical analysis; control measures (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/14/4075/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/14/4075/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:14:p:4075-:d:589341

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().