Materiały konferencyjne SEP 2025

14 The article focuses on the issues of non-destructive inspection of string anchors in the PGG S.A. coal mine. Branch KWK Piast-Ziemowit Ruch Ziemowit. At present, there is no non- destructive measurement system used in mining to determine the state of fatigue of the mining anchor shoring. The methods in use, which rely on anchor pull-out testing, are selective and do not provide the maximum possible level of safety for users of the mine workings. This paper proposes a measurement system based on the self-excitation phenomenon and the Random Fo- rest algorithm for preliminary assessment of the condition of the tested string anchors.