Research on Microseismic Characteristics of Rock,Coal and Gas Outburst in Coal Mines
Rockburst and coal and gas outburst are the most serious coal (rock) dynamic hazards,using microseismic monitoring system to analyze and compare the similarities and differences between rockburst and coal and gas outburst for providing theoretical basis of monitoring and prediction in case of rockburst and outburst.The results show that the wave and spectrum of rockburst and outburst are similar in many aspects,but the duration,signal band distribution and velocity amplitude are visiblely different in the practical situations of rockburst and outburst Rockburst has the characteristics of short duration time,high velocity amplitude and narrow signal band while coal and gas outburst appears long duration time,three stages of vibration wave include pre-microseism,secondary microseism and main microseism.The peak value time of the vibration wave is almost the same in gas emission.These conclusions are beneficial to research the wave and spectrum characteristics for preventing and predicting rockburst and outburst.
rockburst coal and gas outburst microseism spectrum characteristics
Ding Yanlu Dou Linming Cai Wu
State Key Laboratory of Coal Resources and Mine Safety, School of Mines,China University of Mining and Technology, Xuzhou, 221116, China
国际会议
International Symposium on Rock Mechanics and Mine Dynamic Disaster Prevention(岩石力学与矿井动力灾害防治国际学术研讨会)
辽宁阜新
英文
69-75
2013-07-13（万方平台首次上网日期，不代表论文的发表时间）