Limitations of Upper Protective Layers as Pressure Relief Measures for Extra-Thick Coal Seam Mining: Insights from a Case Study

Limitations of Upper Protective Layers as Pressure Relief Measures for Extra-Thick Coal Seam Mining: Insights from a Case Study

Upper protective layer (UPL) mining is extensively utilised as a pressure relief strategy to prevent outbursts and coal bursts. However, when the excavation height of the protected layer is substantial, the depressurisation efficacy of the protective layer may be diminished. This paper takes the Hai...

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Bibliographic Details
Main Authors: Yanjiang Chai, Linming Dou, Jiang He, Xiaotao Ma, Fangzhou Lu, Hu He
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Energies
Subjects:
thick coal seam
protective seam
stress reduction
interlayer spacing
induced seismicity
Online Access:https://www.mdpi.com/1996-1073/17/6/1446

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https://www.mdpi.com/1996-1073/17/6/1446

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