摘要
为进一步提高微震监测系统定位精度,在传统微震监测技术基础上,提出一种新型自震式微震监测技术,通过自主研发自激震源,实现自动变频震动,实时计算煤岩体中纵波传播速度,优化微震系统参数,最终实现高精度、高可靠性监测微震事件。依托该技术自主研发的KJ768自震式微震监测系统已先后在跃进煤矿、石圪台煤矿、龟兹煤矿等多个现场进行了实际应用,结果表明:自震式微震监测技术在煤矿动压防治领域具有监测形式多样、监测精度高等特点,能够有效解决冲击地压灾害预警、浅埋煤层强动载矿压预警等问题。
In order to further improve the positioning accuracy of the micro seismic monitoring system, based on the conventional micro seis- mic monitoring teehnology,a new initiative micro seismic monitoring technology was provided.With a self researched and developed excited seismic source, an automatic frequency converted seismic could be realized and the longitudinal wave propagation speed in the coal and rock mass could be timely calculated.The parameters of the micro seismic system could be optimized and finally the high accuracy and high relia- bility monitoring could be realized for a micro seismic accident.The self researched and developed KJ768 initiative micro seismic monitoring system with the technology were applied to the actual applications in Yuejin Mine, Shigetai Mine, Qiuci Mine and other several sites.The re- suits showed that the initiative micro seismic monitoring technology would have the multi type monitoring, high monitoring accuracy and other features in the mine dynamic pressure prevention and control area and could effectively solve the early warning of the mine strata pressure bump disaster, early warning of the mine powerful dynamic pressure from the shallow depth seam and other several problems.
出处
《煤炭科学技术》
CAS
北大核心
2016年第7期92-96,共5页
Coal Science and Technology
基金
国家重点基础研究发展计划(973计划)资助项目(2010CB226806)
国家国际科技合作专项资助项目(2011DFA61790)
关键词
自震式微震监测
冲击地压
动载矿压
上行开采
initiative micro seismic monitoring
mine strata pressure bump
dynamic mine strata pressure
upward mining
