The seismic source parameters of tremors provoked by destress blastings in coal seam

• Published in: Journal of mining science Vol. 52; no. 2; pp. 258 - 264
• Main Authors: Wojtecki, Ł., Mendecki, M. J., Zuberek, W. M.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-03-2016; Springer; Springer Nature B.V
• Subjects: Analysis; Blasting; Coal; Coal industry; Coal mines; Coal mining; Earth and Environmental Science; Earth Sciences; Geology; Geomechanics; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Longwall mining; Mineral Resources; Mining; Parameters; Tremors; Underground mining; Active rockburst prevention; destress blasting; seismic source parameters
• ISSN: 1062-7391; 1573-8736
• DOI: 10.1134/S1062739116020382

Underground mining of coal seams in the Upper Silesian Coal Basin is currently being carried out under difficult geological and mining conditions. Rockburst hazard can be minimized via the use of active rockburst prevention, where destress blastings take an important role, especially during mining under disadvantageous geological and mining conditions. Presented paper shows how seismic source parameters may be useful to study destress blastings effects. Destress blastings were performed in coal seam no. 510 during longwall mining of coal seam no. 510 in one of the coal mines in the Upper Silesian Coal Basin. The presented preliminary investigations have given possibility for rapid estimation of destress blasting effectiveness with the use of seismic source parameters, but further analysis under other geological and mining conditions and other blasting parameters is needed.