IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2023i17p13053-d1228657.html
   My bibliography  Save this article

Stress-Relief–Anchor-Grouting, a Collaborative Control Technology for Severe Extrusion Floor Heave in a Deep Roadway: A Case Study

Author

Listed:
  • Donghuang Shang

    (School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Meng Wang

    (School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    State Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization, Jiaozuo 454003, China)

  • Dawei Li

    (School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    State Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization, Jiaozuo 454003, China)

  • Chunsheng Yu

    (Henan Energy Chemical Group Co., Ltd., Guhanshan Coal Mine, Jiaozuo 450046, China)

  • Shiyi Huang

    (School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Jie Li

    (Ejin Holo Banner Energy Administration, Ordos 017000, China)

  • Sijiang Wei

    (School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    State Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization, Jiaozuo 454003, China)

  • Liuan Zhao

    (Henan Energy Chemical Group Co., Ltd., Guhanshan Coal Mine, Jiaozuo 450046, China)

Abstract

Severe extrusion floor heave is the most common type of failure of floors in deep roadways, and it is also a major problem restricting the safe and efficient mining of deep coal resources. In deep roadways, reducing floor stress is an effective means to control floor heave. In this study, the method of creating directional stress-relief zones by constructing stress-relief boreholes is applied; while the stress is released, the path of stress from the ribs transferred to the floor and to the extrusion failure path is cut off, and floor heave control is achieved. Therefore, based on the stress-boundary and rock-mass parameters of the roadway, the control effects of the borehole angle, length, diameter, and row spacing on the extrusion floor heave were studied, and the reasonable thresholds of borehole parameters were shown to ensure the stress-relief effect on the roadway. In addition, the bolt-grouting technology was used to strengthen the floor of the roadway, the broken surrounding rock was modified via grouting consolidation, the support strength of the floor was increased using high-tension bolts (cable), and there was a good floor heave control effect in the field application. On the basis of traditional floor reinforcement, the control effect of stress regulation on floor heave is fully considered in this study, and stress-relief–anchor-grouting, a collaborative control technology for floor heave in deep roadways, is developed. Based on the three factors affecting the stability of deep roadways (stress, lithology, and support), the collaborative prevention and control of severe extrusion floor heave were realized, which provides a new method for deep roadway floor heave control and has good application value.

Suggested Citation

  • Donghuang Shang & Meng Wang & Dawei Li & Chunsheng Yu & Shiyi Huang & Jie Li & Sijiang Wei & Liuan Zhao, 2023. "Stress-Relief–Anchor-Grouting, a Collaborative Control Technology for Severe Extrusion Floor Heave in a Deep Roadway: A Case Study," Sustainability, MDPI, vol. 15(17), pages 1-22, August.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:17:p:13053-:d:1228657
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/17/13053/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/15/17/13053/
    Download Restriction: no
    ---><---

    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:jsusta:v:15:y:2023:i:17:p:13053-:d:1228657. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.