IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i7p1375-d221359.html
   My bibliography  Save this article

Stability Control for Gob-Side Entry Retaining with Supercritical Retained Entry Width in Thick Coal Seam Longwall Mining

Author

Listed:
  • Zizheng Zhang

    (Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, China
    State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China
    Key Laboratory of Safe and Effective Coal Mining, Ministry of Education, Anhui University of Science and Technology, Huainan 232001, China)

  • Xianyang Yu

    (Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Hai Wu

    (Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, China)

  • Min Deng

    (School of Resource & Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

Abstract

Taking gob-side entry retaining with large mining height (GER-LMH) of the 4211 panel in the Liujiazhuang coal mine as the engineering background, a numerical simulation was conducted to study the surrounding rock deformation, stress, and plastic zone distribution of GER-LMH with respect to retained entry width. The concept of critical retained entry width of GER-LMH was proposed. In view of the deformation characteristics of surrounding rock, an innovative approach to determine the critical width of GER-LMH based on the cusp catastrophe theory was proposed. The cusp catastrophe functions were set up by approximate roadside backfill body rib convergence and roof subsidence series with respect to different retained entry widths. The critical retained entry width of GER-LMH was 4.0 m according to bifurcation set equations. Surrounding rock stability control principle and technique of GER-LMH was proposed, including “rib strengthening and roof control”: road-in support with high pre-stress rockbolts and anchor cables, roadside backfill body construction technology with high-water quick consolidated filling materials and counter-pulled rockbolt, road-in reinforced support technology with hydraulic prop support and roof master. Field test and field monitoring results show that GER-LMH with supercritical retained entry width in the 4211 panel could meet the requirements for ventilation when the 4211 panel was retreating.

Suggested Citation

  • Zizheng Zhang & Xianyang Yu & Hai Wu & Min Deng, 2019. "Stability Control for Gob-Side Entry Retaining with Supercritical Retained Entry Width in Thick Coal Seam Longwall Mining," Energies, MDPI, vol. 12(7), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:7:p:1375-:d:221359
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/7/1375/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/7/1375/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Zhiyi Zhang & Hideki Shimada & Takashi Sasaoka & Akihiro Hamanaka, 2017. "Stability Control of Retained Goaf-Side Gateroad under Different Roof Conditions in Deep Underground Y Type Longwall Mining," Sustainability, MDPI, vol. 9(10), pages 1-19, September.
    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. Peng Kong & Lishuai Jiang & Jinquan Jiang & Yongning Wu & Lianjun Chen & Jianguo Ning, 2019. "Numerical Analysis of Roadway Rock-Burst Hazard under Superposed Dynamic and Static Loads," Energies, MDPI, vol. 12(19), pages 1-19, September.
    2. Jianhang Chen & Ziwei Ding & Saisai Wu & Junwen Zhang, 2022. "Studying the Bond Performance of Full-Grouting Rock Bolts Based on the Variable Controlling Method," Energies, MDPI, vol. 15(9), pages 1-15, April.
    3. Erhu Bai & Wenbing Guo & Dongsheng Zhang & Yi Tan & Mingjie Guo & Gaobo Zhao, 2019. "Using the Magnetotelluric Method for Detecting Aquifer Failure Characteristics under High-Intensity Mining of Thick Coal Seams," Energies, MDPI, vol. 12(22), pages 1-14, November.
    4. Zhijun Tian & Zizheng Zhang & Min Deng & Shuai Yan & Jianbiao Bai, 2020. "Gob-Side Entry Retained with Soft Roof, Floor, and Seam in Thin Coal Seams: A Case Study," Sustainability, MDPI, vol. 12(3), pages 1-22, February.
    5. Housheng Jia & Kun Pan & Shaowei Liu & Bo Peng & Kai Fan, 2019. "Evaluation of the Mechanical Instability of Mining Roadway Overburden: Research and Applications," Energies, MDPI, vol. 12(22), pages 1-19, November.
    6. Dongmei Huang & Weijun Li & Xikun Chang & Yunliang Tan, 2019. "Key Factors Identification and Risk Assessment for the Stability of Deep Surrounding Rock in Coal Roadway," IJERPH, MDPI, vol. 16(15), pages 1-15, 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. Yang Yu & Jianbiao Bai & Xiangyu Wang & Lianying Zhang, 2020. "Control of the Surrounding Rock of a Goaf-Side Entry Driving Heading Mining Face," Sustainability, MDPI, vol. 12(7), pages 1-16, March.
    2. Wenlong Shen & Meng Wang & Zhengzheng Cao & Faqiang Su & Hua Nan & Xuelong Li, 2019. "Mining-Induced Failure Criteria of Interactional Hard Roof Structures: A Case Study," Energies, MDPI, vol. 12(15), pages 1-17, August.
    3. 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.
    4. Yuantian Sun & Guichen Li & Junfei Zhang & Deyu Qian, 2019. "Stability Control for the Rheological Roadway by a Novel High-Efficiency Jet Grouting Technique in Deep Underground Coal Mines," Sustainability, MDPI, vol. 11(22), pages 1-17, November.
    5. Zhijun Tian & Zizheng Zhang & Min Deng & Shuai Yan & Jianbiao Bai, 2020. "Gob-Side Entry Retained with Soft Roof, Floor, and Seam in Thin Coal Seams: A Case Study," Sustainability, MDPI, vol. 12(3), pages 1-22, February.
    6. Hengjie Luan & Yujing Jiang & Huili Lin & Guofeng Li, 2018. "Development of a New Gob-Side Entry-Retaining Approach and Its Application," Sustainability, MDPI, vol. 10(2), pages 1-15, February.
    7. Xingdong Zhao & Huaibin Li & Shujing Zhang & Xiaoming Yang, 2019. "Stability Analyses and Cable Bolt Support Design for A Deep Large-Span Stope at the Hongtoushan Mine, China," Sustainability, MDPI, vol. 11(21), pages 1-23, November.
    8. Zhiyi Zhang & Hideki Shimada, 2018. "Numerical Study on the Effectiveness of Grouting Reinforcement on the Large Heaving Floor of the Deep Retained Goaf-Side Gateroad: A Case Study in China," Energies, MDPI, vol. 11(4), pages 1-15, April.
    9. Gangye Guo & Hongpu Kang & Deyu Qian & Fuqiang Gao & Yang Wang, 2018. "Mechanism for Controlling Floor Heave of Mining Roadways Using Reinforcing Roof and Sidewalls in Underground Coal Mine," Sustainability, MDPI, vol. 10(5), pages 1-15, May.

    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:12:y:2019:i:7:p:1375-:d:221359. 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.