IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i21p8104-d959009.html
   My bibliography  Save this article

Experimental Study on Damage Fracture Law of Coal from Solid-Propellant Blasting

Author

Listed:
  • Huaibao Chu

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    Henan Key Laboratory Underground Engineering and Disaster Prevention, Jiaozuo 454000, China)

  • Mengfei Yu

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Bo Sun

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    School of Civil Engineering, Xinyu University, Xinyu 338000, China)

  • Shaoyang Yan

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Haixia Wei

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Guangran Zhang

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Donghui Wang

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

  • Jie Xu

    (School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China)

Abstract

The low permeability of coal seams has always been the main bottleneck restricting coalbed methane drainage. In this paper, a coal seam anti-reflection technology with solid-propellant blasting was proposed, and the composition and proportion of the solid propellants were determined based on the principle of oxygen balance. The authors designed a solid-propellant blasting damage fracture experiment of simulation coal, tested the impact pressure on a blast hole wall, measured the ultrasonic wave velocity, explosive strain and crack propagation velocity, and then revealed the blasting damage fracture process and mechanism of coal based on the experimental results and damage fracture mechanics theory. The history curve of impact pressure time can be divided into three processes including the slow pressurization process, dramatic increase process, and nonlinear pressure relief process. The pressure distribution along the whole blasting hole was uneven, and the peak pressure was relatively small, but the pressure action time was long. The damage and fracture process of coal solid-propellant blasting can be divided into two stages including the rapid damage fracture development stage and the stable slow damage fracture development stage. Firstly, the explosion stress wave produced and rapidly accelerated the radial cracks extension; secondly, the cracks slowly expanded over a large area by the combined effects of the high-pressure gases, the gas, and the original rock stress.

Suggested Citation

  • Huaibao Chu & Mengfei Yu & Bo Sun & Shaoyang Yan & Haixia Wei & Guangran Zhang & Donghui Wang & Jie Xu, 2022. "Experimental Study on Damage Fracture Law of Coal from Solid-Propellant Blasting," Energies, MDPI, vol. 15(21), pages 1-11, October.
  • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:8104-:d:959009
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/21/8104/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/15/21/8104/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Jieqin Xia & Bin Dou & Hong Tian & Jun Zheng & Guodong Cui & Muhammad Kashif, 2021. "Research on Initiation of Carbon Dioxide Fracturing Pipe Using the Liquid Carbon Dioxide Phase-Transition Blasting Technology," Energies, MDPI, vol. 14(3), pages 1-16, January.
    2. Zheng, Peng & Xia, Yucheng & Yao, Tingwei & Jiang, Xu & Xiao, Peiyao & He, Zexuan & Zhou, Desheng, 2022. "Formation mechanisms of hydraulic fracture network based on fracture interaction," Energy, Elsevier, vol. 243(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. Huaibao Chu & Donghui Wang & Xiaolin Yang & Mengfei Yu & Bo Sun & Shaoyang Yan & Guangran Zhang & Jie Xu, 2023. "Mechanism of Nozzle Position Affecting Coalbed Methane Mining in High-Pressure Air Blasting," Sustainability, MDPI, vol. 15(14), pages 1-15, July.

    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. Tang, Jiren & Chen, Long & Liu, Wenchuan & Zhang, Huali & Wang, Junxin & Liu, Qi, 2023. "Investigation on jet diffusion mechanism with applications to enhancing efficiency in forming directional fractures," Energy, Elsevier, vol. 262(PB).
    2. Chao Pu & Zhenjian Liu & Ge Pu, 2022. "On the Factors of Impact Pressure in Supercritical CO 2 Phase-Transition Blasting—A Numerical Study," Energies, MDPI, vol. 15(22), pages 1-15, November.
    3. Feng Zhang, 2023. "Research into the Mechanism and Application of Liquid CO 2 Phase-Transition Fracturing in a Coal Seam to Enhance Permeability," Sustainability, MDPI, vol. 15(4), pages 1-11, February.
    4. Yanjun Zhang & Le Yan & Hongkui Ge & Shun Liu & Desheng Zhou, 2022. "Experimental Study on Connection Characteristics of Rough Fractures Induced by Multi-Stage Hydraulic Fracturing in Tight Reservoirs," Energies, MDPI, vol. 15(7), pages 1-17, March.
    5. Yang, Lei & Wu, Shan & Gao, Ke & Shen, Luming, 2022. "Simultaneous propagation of hydraulic fractures from multiple perforation clusters in layered tight reservoirs: Non-planar three-dimensional modelling," Energy, Elsevier, vol. 254(PC).
    6. Hou, Bing & Zhang, Qixing & Liu, Xing & Pang, Huiwen & Zeng, Yue, 2022. "Integration analysis of 3D fractures network reconstruction and frac hits response in shale wells," Energy, Elsevier, vol. 260(C).
    7. Xu, WenLong & Yu, Hao & Micheal, Marembo & Huang, HanWei & Liu, He & Wu, HengAn, 2023. "An integrated model for fracture propagation and production performance of thermal enhanced shale gas recovery," Energy, Elsevier, vol. 263(PA).

    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:8104-:d:959009. 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.