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: ①the detector channel number of the trigger is many; ②Whether it occurs in the critical layer, it generally occurs at a critical layer; ③Not 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.
coal mine safety microseism monitoring strata fracture detector amplitude rock burst prediction
Li Fengqin Wu Jingang
Department of Safety Science Engineering,Henan Institute of Engineering,Zhengzhou,He nan,451191,China
国际会议
the 4th International Symposium on Mine Safety (2012) 第四届国际矿山安全学术研讨会(2012)
阜新
英文
48-52
2012-08-04（万方平台首次上网日期，不代表论文的发表时间）