Abstract：Based on a microseismic monitoring system，a field monitoring experiment on the wave propagation from an explosive source was conducted in a deep coal mine. The results show that seismic attenuation is exponentially related to the propagation distance. After about 200 m of oblique propagation crosses the rock beddings，the amplitude of the seismic wave is significantly reduced；and the first arrival point is not clear at all and there needs to be compensation prior to source location. The experiment also shows that microseismic monitoring with 60 m geophone intervals is good for mine-scale studies. Microseismic monitoring，together with the result of audio perspective drawing indicates that fractured and water-charged regions significantly accelerates seismic attenuation. The results provide an objective theoretical basis for further studying the optimization of seismic monitoring network arrays，which can support other monitoring tools in underground coal mining.
