Abstract
Acoustic emission (AE) technique is a trend of non-contact technique forecasting coal and rock dynamic disaster.Coal and rock AE propagation attenuation exponent function on different AE frequencies, different quality factors and different propagation distance are acquired by theory and numerical simulation and actual experiment; the effect of AE sensor installation manners on coal and rock surface , coal and rock bottom and wave guide are studied, the results show that the effect of AE sensor installation manner on wave guide is better than on coal and rock surface ,equivalent to installation manner on coal and rock hole bottom. Based on above study results, actual rock bursts are successfully forecasted.
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