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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Yubing Huang & Bei Jiang & Yukun Ma & Huayong Wei & Jincheng Zang & Xiang Gao, 2021. "Study on Asymmetric Failure and Control Measures of Lining in Deep Large Section Chamber," Energies, MDPI, vol. 14(14), pages 1-14, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:14:p:4075-:d:589341
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    References listed on IDEAS

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    1. Jun Guo & Guorui Feng & Pengfei Wang & Tingye Qi & Xiaorong Zhang & Yonggan Yan, 2018. "Roof Strata Behavior and Support Resistance Determination for Ultra-Thick Longwall Top Coal Caving Panel: A Case Study of the Tashan Coal Mine," Energies, MDPI, vol. 11(5), pages 1-19, April.
    2. Krzysztof Skrzypkowski, 2020. "Case Studies of Rock Bolt Support Loads and Rock Mass Monitoring for the Room and Pillar Method in the Legnica-Głogów Copper District in Poland," Energies, MDPI, vol. 13(11), pages 1-20, June.
    3. Xinxian Zhai & Guangshuai Huang & Chengyu Chen & Rubo Li, 2018. "Combined Supporting Technology with Bolt-Grouting and Floor Pressure-Relief for Deep Chamber: An Underground Coal Mine Case Study," Energies, MDPI, vol. 11(1), pages 1-16, January.
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    Cited by:

    1. Chun Zhu & Shengqi Yang & Yuanyuan Pu & Lijun Sun & Min Wang & Kun Du, 2023. "Advanced Progress of the Geo-Energy Technology in China," Energies, MDPI, vol. 16(19), pages 1-6, September.

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