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Acoustic Noise in Coal Seam as an Indicator of Geodynamic Behavior in Longwall
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Acoustic Noise in Coal Seam as an Indicator of Geodynamic Behavior in Longwall
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Journal Article
Acoustic Noise in Coal Seam as an Indicator of Geodynamic Behavior in Longwall
2022
Overview
Based on the mathematical modeling of the geomechanical condition of a coal face, it is shown that destruction of the face zone occurs in the form of squeezing-out and spalling within an operational cycle. The acoustic noise in the longwall is analyzed, and the noise spectrum peak frequency is determined. The peak frequency is reflective of the size of the damage area in the face zone.
Publisher
Pleiades Publishing,Springer,Springer Nature B.V
Subject
