Abstract
The article presents a case-study of change in the seismic energy absorption coefficient with changing mining and geological conditions during the exploitation of one of the longwalls at the Polish coal mine Ruda. Several stages of longwall excavation exploitation, differing in stress conditions, were selected for the analysis. The results obtained show that low attenuation occurs in areas of high stress concentration and, conversely, high attenuation is associated with the weakening of the rock mass.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2020, No. 6, pp. 54–60. https://doi.org/10.15372/FTPRPI20200605.
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Kurzeja, J. SEISMOACOUSTIC METHOD FOR ASSESSING THE SEISMIC ENERGY ABSORPTION COEFFICIENT ON A MINING LONGWALL PANEL LENGTH — A CASE STUDY. J Min Sci 56, 925–931 (2020). https://doi.org/10.1134/S1062739120060058
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DOI: https://doi.org/10.1134/S1062739120060058