IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i21p8257-d963846.html
   My bibliography  Save this article

Study on the Influence and Control of Stress Direction Deflection and Partial-Stress Boosting of Main Roadways Surrounding Rock and under the Influence of Multi-Seam Mining

Author

Listed:
  • Dongdong Chen

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

  • Fangfang Guo

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

  • Zijian Li

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

  • Xiang Ma

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

  • Shengrong Xie

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

  • Yiyi Wu

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

  • Zhiqiang Wang

    (School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China)

Abstract

A large coal pillar (usually more than 90 m) is generally left in place to ensure the stability of main roadway groups, due to its long service lifespan, which commonly also causes a significant loss of coal resources. The design of the width of the protective coal pillar and the control system of the surrounding rock are directly determined by the characteristics of the stress field and the damage mechanism under the influence of the mining activities. However, there are few studies on the effects of the partial-stress boosting and the direction deflection of the stress field on the failure evolution of the surrounding rock (especially in multi-seam mining). In this paper, theoretical analysis and numerical simulation are used to investigate the direction evolution of the maximum principal stress in front of the working face with malposition distances between the upper and lower working faces during the influence of double coal seams mining. Furthermore, a large-scale numerical model is used to study the deviatoric stress evolution of the surrounding rock and the propagation process of the plastic zone in the main roadway group with different widths of protective coal pillars. Then, an asymmetric cooperative anchoring classification method is proposed to strengthen the roadway support, depending on the critical area of the deviatoric stress in the roadway surrounding rock. The peak zone deflection of the deviatoric stress determines the evolution direction of the plastic area, and the peak value of the deviatoric stress presents a typical asymmetric stress boosting on both sides of the roadway. These findings are validated by the on-site ground pressure monitoring results and the practical failure modes of the surrounding rock.

Suggested Citation

  • Dongdong Chen & Fangfang Guo & Zijian Li & Xiang Ma & Shengrong Xie & Yiyi Wu & Zhiqiang Wang, 2022. "Study on the Influence and Control of Stress Direction Deflection and Partial-Stress Boosting of Main Roadways Surrounding Rock and under the Influence of Multi-Seam Mining," Energies, MDPI, vol. 15(21), pages 1-24, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:8257-:d:963846
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/21/8257/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/21/8257/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Sen Yang & Guichen Li & Ruiyang Bi & Bicheng Yao & Ruiguang Feng & Yuantian Sun, 2021. "The Stability of Roadway Groups under Rheology Coupling Mining Disturbance," Sustainability, MDPI, vol. 13(21), pages 1-18, November.
    2. Yu Xiong & Dezhong Kong & Zhanbo Cheng & Zhijie Wen & Zhenqian Ma & Guiyi Wu & Yong Liu, 2021. "Instability Control of Roadway Surrounding Rock in Close-Distance Coal Seam Groups under Repeated Mining," Energies, MDPI, vol. 14(16), pages 1-19, August.
    3. Shengrong Xie & Fangfang Guo & Yiyi Wu, 2022. "Control Techniques for Gob-Side Entry Driving in an Extra-Thick Coal Seam with the Influence of Upper Residual Coal Pillar: A Case Study," Energies, MDPI, vol. 15(10), pages 1-21, May.
    4. Jia, Hongxiang & Li, Tianjiao & Wang, Anjian & Liu, Guwang & Guo, Xiaoqian, 2021. "Decoupling analysis of economic growth and mineral resources consumption in China from 1992 to 2017: A comparison between tonnage and exergy perspective," Resources Policy, Elsevier, vol. 74(C).
    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. Dongdong Chen & Zhiqiang Wang & Zaisheng Jiang & Shengrong Xie & Zijian Li & Qiucheng Ye & Jingkun Zhu, 2023. "Research on J 2 Evolution Law and Control under the Condition of Internal Pressure Relief in Surrounding Rock of Deep Roadway," Sustainability, MDPI, vol. 15(13), pages 1-22, June.
    2. Deqiu Wang & Yun Zheng & Fulian He & Jiayu Song & Jianlong Zhang & Yanhao Wu & Pengpeng Jia & Xiaohui Wang & Baoping Liu & Feifei Wang & Yajiang Zhang & Kai Tao, 2023. "Mechanism and Control of Asymmetric Floor Heave in the Gob-Side Coal Roadway under Mining Pressure in Extra-Thick Coal Seams," Energies, MDPI, vol. 16(13), pages 1-19, June.
    3. Fulian He & Bingquan Liu & Deqiu Wang & Dongdong Chen & Yanhao Wu & Liming Song & Xiang Ma & Qiucheng Ye & Zaisheng Jiang & Fangfang Guo & Weiguang Wang & Yiyi Wu, 2022. "Study on Stability and Control of Surrounding Rock in the Stopping Space with Fully Mechanized Top Coal Caving under Goaf," Energies, MDPI, vol. 15(22), pages 1-22, November.

    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. Shengrong Xie & Yiyi Wu & Fangfang Guo & Hang Zou & Dongdong Chen & Xiao Zhang & Xiang Ma & Ruipeng Liu & Chaowen Wu, 2022. "Application of Pre-Splitting and Roof-Cutting Control Technology in Coal Mining: A Review of Technology," Energies, MDPI, vol. 15(17), pages 1-20, September.
    2. Wu, Guoyong & Gao, Yue & Feng, Yanchao, 2023. "Assessing the environmental effects of the supporting policies for mineral resource-exhausted cities in China," Resources Policy, Elsevier, vol. 85(PB).
    3. Zhaoshuai Pan & Zhaozhi Zhang & Dong Che, 2023. "Exploring Primary Aluminum Consumption: New Perspectives from Hybrid CEEMDAN-S-Curve Model," Sustainability, MDPI, vol. 15(5), pages 1-21, February.
    4. Changhao Shan & Shenggen Cao & Zeyu Zhang & Kewen Lin & Jialong Sun, 2023. "Numerical Investigation on the Yield Pillar Bearing Capacity under the Two-End-Type Cable Reinforcement," Energies, MDPI, vol. 16(18), pages 1-17, September.
    5. Raza, Muhammad Yousaf & Wu, Rongxin & Lin, Boqiang, 2023. "A decoupling process of Pakistan's agriculture sector: Insights from energy and economic perspectives," Energy, Elsevier, vol. 263(PC).
    6. Huayong Lv & Defeng Wang & Zhanbo Cheng & Yaning Zhang & Tao Zhou, 2022. "Study on Mechanical Characteristics and Failure Modes of Coal–Mudstone Combined Body with Prefabricated Crack," Mathematics, MDPI, vol. 10(2), pages 1-18, January.
    7. Liu, Junfeng & Shen, Fei & Zhang, Jingru, 2023. "Economic and environmental effects of mineral resource exploitation: Evidence from China," Resources Policy, Elsevier, vol. 86(PB).
    8. Lin Zhang & Jinyan Chen & Faustino Dinis & Sha Wei & Chengzhi Cai, 2022. "Decoupling Effect, Driving Factors and Prediction Analysis of Agricultural Carbon Emission Reduction and Product Supply Guarantee in China," Sustainability, MDPI, vol. 14(24), pages 1-22, December.
    9. Yulong Chen & Junwen Zhang & Jianhang Chen & Xuejie Deng, 2022. "Special Issue: Rock Burst Disasters in Coal Mines," Energies, MDPI, vol. 15(13), pages 1-6, July.
    10. Yuqi Shang & Dezhong Kong & Shijiang Pu & Yu Xiong & Qiang Li & Zhanbo Cheng, 2022. "Study on Failure Characteristics and Control Technology of Roadway Surrounding Rock under Repeated Mining in Close-Distance Coal Seam," Mathematics, MDPI, vol. 10(13), pages 1-18, June.
    11. Khan, Rabnawaz, 2023. "The impact of a new techno-nationalism era on eco-economic decoupling," Resources Policy, Elsevier, vol. 82(C).
    12. Krzysztof Skrzypkowski & Krzysztof Zagórski & Anna Zagórska & Derek B. Apel & Jun Wang & Huawei Xu & Lijie Guo, 2022. "Choice of the Arch Yielding Support for the Preparatory Roadway Located near the Fault," Energies, MDPI, vol. 15(10), pages 1-21, 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:15:y:2022:i:21:p:8257-:d:963846. 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.