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Mechanism and Parameter Sensitivity of Overlying Rock Failure in Longwall Panel.

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Title: Mechanism and Parameter Sensitivity of Overlying Rock Failure in Longwall Panel.
Authors: Yin, Caiyun1,2 (AUTHOR), Han, Jan3 (AUTHOR), Li, Xuandong4 (AUTHOR), Pan, Bo2 (AUTHOR), Gu, Leiyu2 (AUTHOR), Gao, Zhiyu5 (AUTHOR), Chen, Jinchuan5 (AUTHOR), Gao, Yunfeng5 (AUTHOR) gaoyunfeng@longruan.com, Suorineni, Fidelis Tawiah (AUTHOR)
Source: Shock & Vibration. 9/15/2025, Vol. 2025, p1-19. 19p.
Subjects: Longwall mining, Rock mechanics, Coal mining, Structural failures, Seismic wave studies, Stress concentration, Computer simulation
Abstract: This study investigates the damage range of the longwall mining face roof using theoretical calculations, numerical simulations, and field investigations. A mechanical model of the roof surrounding rock was developed to establish the relationship between roof failure depth, vertical stress, and rock compressive strength. The damage height calculation formula was revised, and methods for determining maximum damage height and horizontal influence range were proposed. Range analysis identified the rock bulking coefficient K and joint fissure influence coefficient ζ as key factors affecting roof damage height. Engineering analysis of the 1802 panel in Xinzhuang Coal Mine, combined with FLAC3D simulations, revealed stress distribution and dynamic evolution characteristics of the yield zone during mining, with a maximum failure height of 125 m. Field borehole television monitoring and seismic analysis confirmed a fracture zone height of 128 m, aligning with theoretical calculations. The study also highlighted activity patterns of high‐frequency low‐energy seismic events in the lower strata and low‐frequency high‐energy events in the upper hard strata. These findings provide valuable theoretical and practical insights for predicting roof failure height. [ABSTRACT FROM AUTHOR]
Copyright of Shock & Vibration is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Mechanism and Parameter Sensitivity of Overlying Rock Failure in Longwall Panel.
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  Data: <searchLink fieldCode="AR" term="%22Yin%2C+Caiyun%22">Yin, Caiyun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Jan%22">Han, Jan</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Xuandong%22">Li, Xuandong</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Bo%22">Pan, Bo</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gu%2C+Leiyu%22">Gu, Leiyu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Zhiyu%22">Gao, Zhiyu</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Jinchuan%22">Chen, Jinchuan</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Yunfeng%22">Gao, Yunfeng</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> gaoyunfeng@longruan.com</i><br /><searchLink fieldCode="AR" term="%22Suorineni%2C+Fidelis+Tawiah%22">Suorineni, Fidelis Tawiah</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Shock+%26+Vibration%22">Shock & Vibration</searchLink>. 9/15/2025, Vol. 2025, p1-19. 19p.
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  Data: <searchLink fieldCode="DE" term="%22Longwall+mining%22">Longwall mining</searchLink><br /><searchLink fieldCode="DE" term="%22Rock+mechanics%22">Rock mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Coal+mining%22">Coal mining</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+failures%22">Structural failures</searchLink><br /><searchLink fieldCode="DE" term="%22Seismic+wave+studies%22">Seismic wave studies</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+concentration%22">Stress concentration</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigates the damage range of the longwall mining face roof using theoretical calculations, numerical simulations, and field investigations. A mechanical model of the roof surrounding rock was developed to establish the relationship between roof failure depth, vertical stress, and rock compressive strength. The damage height calculation formula was revised, and methods for determining maximum damage height and horizontal influence range were proposed. Range analysis identified the rock bulking coefficient K and joint fissure influence coefficient ζ as key factors affecting roof damage height. Engineering analysis of the 1802 panel in Xinzhuang Coal Mine, combined with FLAC3D simulations, revealed stress distribution and dynamic evolution characteristics of the yield zone during mining, with a maximum failure height of 125 m. Field borehole television monitoring and seismic analysis confirmed a fracture zone height of 128 m, aligning with theoretical calculations. The study also highlighted activity patterns of high‐frequency low‐energy seismic events in the lower strata and low‐frequency high‐energy events in the upper hard strata. These findings provide valuable theoretical and practical insights for predicting roof failure height. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Shock & Vibration is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1155/vib/4761316
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 19
        StartPage: 1
    Subjects:
      – SubjectFull: Longwall mining
        Type: general
      – SubjectFull: Rock mechanics
        Type: general
      – SubjectFull: Coal mining
        Type: general
      – SubjectFull: Structural failures
        Type: general
      – SubjectFull: Seismic wave studies
        Type: general
      – SubjectFull: Stress concentration
        Type: general
      – SubjectFull: Computer simulation
        Type: general
    Titles:
      – TitleFull: Mechanism and Parameter Sensitivity of Overlying Rock Failure in Longwall Panel.
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            NameFull: Yin, Caiyun
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            NameFull: Han, Jan
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            NameFull: Li, Xuandong
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            NameFull: Pan, Bo
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            NameFull: Gu, Leiyu
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          Dates:
            – D: 15
              M: 09
              Text: 9/15/2025
              Type: published
              Y: 2025
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              Value: 2025
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