IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i10p3792-d820710.html
   My bibliography  Save this article

Pressure Relief Mechanism and Gas Extraction Method during the Mining of the Steep and Extra-Thick Coal Seam: A Case Study in the Yaojie No. 3 Coal Mine

Author

Listed:
  • Hao Zhang

    (College of Safety & Emergency Management Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Lehua Xu

    (Key Laboratory of In-Situ Property-Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China)

  • Mengmeng Yang

    (College of Safety & Emergency Management Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Cunbao Deng

    (College of Safety & Emergency Management Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Yuanping Cheng

    (Key Laboratory of Coal Methane and Fire Control, Ministry of Education, China University of Mining and Technology, Xuzhou 221116, China
    National Engineering Research Center for Coal and Gas Control, China University of Mining and Technology, Xuzhou 221116, China
    School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China)

Abstract

Gas disasters, such as coal and gas outburst and gas overflow, always occur during the mining of the steep and extra-thick coal seam in the horizontal, fully mechanized, top coal slice caving (HFMTCSC) method. To solve these issues and guarantee the safe and efficient mining in the Yaojie No. 3 coal mine, 3DEC software was used in this work to investigate the overburden movement and collapse law as well as the stress redistribution and coal-seam deformation characteristics below the goaf. The results show that a pressure arch structure and a hinge structure are formed in succession in the overburden rock, which induces stress redistribution in the coal below the goaf. During the mining of the upper slice, more than 75% of the coal in the lower slice is located at the effective pressure relief zone; therefore, the steep and extra-thick coal seam can then be protected slice by slice. Meanwhile, with the increase of mining depth, the efficient pressure relief range expands. Based on this pressure relief mechanism, crossing boreholes and bedding boreholes were reasonably designed to efficiently extract the pressure relief gas during the mining of the steep and extra-thick coal seam in the Yaojie No. 3 coal mine.

Suggested Citation

  • Hao Zhang & Lehua Xu & Mengmeng Yang & Cunbao Deng & Yuanping Cheng, 2022. "Pressure Relief Mechanism and Gas Extraction Method during the Mining of the Steep and Extra-Thick Coal Seam: A Case Study in the Yaojie No. 3 Coal Mine," Energies, MDPI, vol. 15(10), pages 1-17, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:10:p:3792-:d:820710
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/10/3792/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/10/3792/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Jinrong Cao & Linming Dou & Guangan Zhu & Jiang He & Shengchuan Wang & Kunyou Zhou, 2020. "Mechanisms of Rock Burst in Horizontal Section Mining of a Steeply Inclined Extra-Thick Coal Seam and Prevention Technology," Energies, MDPI, vol. 13(22), pages 1-20, November.
    2. Kong, Shengli & Cheng, Yuanping & Ren, Ting & Liu, Hongyong, 2014. "A sequential approach to control gas for the extraction of multi-gassy coal seams from traditional gas well drainage to mining-induced stress relief," Applied Energy, Elsevier, vol. 131(C), pages 67-78.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Shengquan He & Shengnan Ou & Fengxiang Huang & Longzhe Jin & Yanran Ma & Tuo Chen, 2022. "Borehole Protection Technology of Screen Pipes for Gas Drainage Boreholes in Soft Coal Seams," Energies, MDPI, vol. 15(15), pages 1-12, August.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Haijun Guo & Zhixiang Cheng & Kai Wang & Baolin Qu & Liang Yuan & Chao Xu, 2020. "Coal permeability evolution characteristics: Analysis under different loading conditions," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 10(2), pages 347-363, April.
    2. Haiqing Shuang & Weitao Meng & Yulong Zhai & Peng Xiao & Yu Shi & Yu Tian, 2022. "Application and Optimization of the Parameters of the High-Level Boreholes in Lateral High Drainage Roadway," Sustainability, MDPI, vol. 14(24), pages 1-18, December.
    3. Marek Jendryś & Andrzej Hadam & Mateusz Ćwiękała, 2021. "Directional Hydraulic Fracturing (DHF) of the Roof, as an Element of Rock Burst Prevention in the Light of Underground Observations and Numerical Modelling," Energies, MDPI, vol. 14(3), pages 1-18, January.
    4. Kalantari, Hosein & Ali Ghoreishi-Madiseh, Seyed, 2023. "Study of mine exhaust heat recovery with fully-coupled direct capture and indirect delivery systems," Applied Energy, Elsevier, vol. 334(C).
    5. Ting Liu & Baiquan Lin & Quanle Zou & Chuanjie Zhu, 2016. "Microscopic mechanism for enhanced coal bed methane recovery and outburst elimination by hydraulic slotting: A case study in Yangliu mine, China," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 6(5), pages 597-614, October.
    6. Yiming Yang & Ting Ai & Zetian Zhang & Ru Zhang & Li Ren & Jing Xie & Zhaopeng Zhang, 2020. "Acoustic Emission Characteristics of Coal Samples under Different Stress Paths Corresponding to Different Mining Layouts," Energies, MDPI, vol. 13(12), pages 1-13, June.
    7. Yuxi Hao & Yangyang Sun & Jiangchun Hu & Manchao He & Jiong Wang & Mingliang Li, 2022. "Study on the Bending Effect and Rock Burst Mechanism of Middle Rock Pillars in Extremely Thick Subvertical Coal Seams," Energies, MDPI, vol. 15(17), pages 1-14, August.
    8. Chao Xu & Mingyue Cao & Kai Wang & Qiang Fu & Liangliang Qin, 2021. "Mining‐disturbed coal damage and permeability evolution: Model and validation," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 11(2), pages 210-221, April.
    9. Fan, Lurong & Wang, Binyu & Song, Xiaoling, 2023. "An authority-enterprise equilibrium differentiated subsidy mechanism for promoting coalbed methane extraction in multiple coal seams," Energy, Elsevier, vol. 263(PA).
    10. Deyu Qian & Nong Zhang & Dongjiang Pan & Zhengzheng Xie & Hideki Shimada & Yang Wang & Chenghao Zhang & Nianchao Zhang, 2017. "Stability of Deep Underground Openings through Large Fault Zones in Argillaceous Rock," Sustainability, MDPI, vol. 9(11), pages 1-28, November.
    11. Guo, Hongguang & Zhang, Yujie & Zhang, Yiwen & Li, Xingfeng & Li, Zhigang & Liang, Weiguo & Huang, Zaixing & Urynowicz, Michael & Ali, Muhammad Ishtiaq, 2021. "Feasibility study of enhanced biogenic coalbed methane production by super-critical CO2 extraction," Energy, Elsevier, vol. 214(C).
    12. Liang Cheng & Zhaolong Ge & Jiufu Chen & Hao Ding & Lishuang Zou & Ke Li, 2018. "A Sequential Approach for Integrated Coal and Gas Mining of Closely-Spaced Outburst Coal Seams: Results from a Case Study Including Mine Safety Improvements and Greenhouse Gas Reductions," Energies, MDPI, vol. 11(11), pages 1-16, November.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:15:y:2022:i:10:p:3792-:d:820710. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.