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Pipe Piles and Key Stratum Modeling for Grouting Reinforcement of Mine Floors under Mining Disturbance and Microseismic Monitoring Evaluation

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  • Dangyu Zhang

    (Jizhong Energy Group Corporation Ltd., Xingtai 054000, China)

  • Shiqi Liu

    (Jizhong Energy Group Corporation Ltd., Xingtai 054000, China
    School of Energy and Mining Engineering, China University of Mining and Technology—Beijing, Beijing 100083, China)

  • Dongyu Guo

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

  • Yubao Li

    (Hebei Coal Sciences Research Institute Corporation Ltd., Xingtai 054000, China)

  • Wenxuan Song

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

  • Yiming Wang

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

  • Yang Liu

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

Abstract

Owing to the increasing applications and popularity of grouting reinforcement technology for water control in mine floors, its control effect is becoming increasingly concerning. However, the lack of an effective evaluation method for the mine floor composite limestone aquifers under different treatment modes can lead to blindness and randomness in grouting engineering. Thus, based on engineering practices, we analyzed the prevention and control effect of water inrush from the working face floor under different grouting reinforcement and transformation modes. Moreover, we established a sub-model of “pipe pile” that was reinforced by cross-layer drilling grouting and a sub-model of “water-resistant key stratum” that was reinforced by regional treatment grouting, while we also simulated and analyzed the concrete function of the structural models formed by the two grouting modes. Different microseismic monitoring arrays were used to monitor and evaluate the grouting reinforcement effect of the working face floor. The monitoring results revealed noticeable differences in the microseismic characteristics of the floor limestone during the mining process under different treatment modes. This provides a basis for evaluating the grouting reinforcement effect.

Suggested Citation

  • Dangyu Zhang & Shiqi Liu & Dongyu Guo & Yubao Li & Wenxuan Song & Yiming Wang & Yang Liu, 2023. "Pipe Piles and Key Stratum Modeling for Grouting Reinforcement of Mine Floors under Mining Disturbance and Microseismic Monitoring Evaluation," Sustainability, MDPI, vol. 15(12), pages 1-21, June.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:12:p:9294-:d:1166776
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    References listed on IDEAS

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    1. Yujun Xu & Liqiang Ma & Ichhuy NGO & Jiangtao Zhai, 2022. "Prediction of the Height of Water-Conductive Fractured Zone under Continuous Extraction and Partial Backfill Mining Method—A Case Study," Sustainability, MDPI, vol. 14(11), pages 1-30, May.
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    Cited by:

    1. Quanjie Zhu & Longkun Sui & Qingsong Li & Yage Li & Lei Gu & Dacang Wang, 2023. "The Single-Channel Microseismic Mine Signal Denoising Method and Application Based on Frequency Domain Singular Value Decomposition (FSVD)," Sustainability, MDPI, vol. 15(13), pages 1-22, July.

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