Calculation of Electromagnetic Radiation Criterion for Rockburst Hazard Forecast in Coal Mines

摘要: — Intensive micro-fracturing of rock close to mining operations accompanies an increase in the likelihood rockbursting. This fracturing causes electromagnetic radiation (EMR) level by up two orders magnitude, depending on environment. Several examples this enhanced EMR are presented paper. We first treat theoretical criterion rockburst hazard coal mines and compare it with empirical activity that was revealed basis more than 400 different hazardous non-hazardous situations underground mines. Only following parameters needed estimate hazard: limiting value gum volume, mine working width, seam thickness, elastic properties.