Electromagnetic Radiation from Coal Rock Failure in Underground Coalmines

摘要

In recent years, many coalmines in China have migrated to deep levels at a speed of 10 to 25 m per year. Currently, 47 coal mines in China are mining below 1000 m depth [1,2]. As the depth and the mining rate increase, coupled with the complex geological structures in some mining areas, the risk of coal rock dynamic disasters, such as rockburst and coal and gas outburst, increases significantly. Exploring effective methods to provide early warning of a coal rock dynamic disaster is important, but also a challenging task.