Precursor Information and Rule of Rock Burst Revealed by Microseismic Monitoring

Combined with the practical application in the Huafeng Coal Mine, we have revealed the precursor informations and the rules of rockburst by using the underground microseismic monitoring technology which can monitor continuously and dynamiclly the fracturing and moving of the coal or rock mass. According to the relationship between the coal rock rupture and the rock burst, we can do comparative analysis for the maximum amplitude of the coal rock detector and found out the rockburst location by using the microseismic monitoring technology, finally, we can analyse the waveforms and propagation characteristics of the rock burst, the microseismic events as the rock burst event generally have three characteristics: Othe detector channel number of the trigger is many; ()Whether it occurs in the critical layer, it generally occurs at a critical layer; Not necessarily induced rock burst, but also to analyze whether has a easy impact site. The conclusion shows that the underground microseismic monitoring technology can do the real time location monitoring in the three dimensional, thus, it is the most effective means for monitoring the coal rock rupture and provides a strong basis for the mechanism and prediction of the rockburst.