微震监测技术在冲击地压矿井的应用

Application of microseism monitoring technology in rock burst coal mine

随着现代科学技术的发展,微震检测技术在我国得到了迅速发展。利用微震监测技术,在发生微震活动的矿区内布设微震探头,探测微破裂所发出的地震波,确定发生地震波的位置,还可以给出地震活动性的强弱和频率,通过微震监测获得的微破裂分布位置,判断潜在的矿山动力灾害活动规律,通过识别矿山动力灾害活动规律实现预警。本文以抚顺老虎台矿83003综放工作面为研究对象,结合老虎台矿微震监测系统分析83003综放工作面冲击地压发生的原因以及覆岩破坏的分布规律。通过分析微震事件发生的震级与能量,对冲击地压的发生提供可行性评估,为老虎台矿今后冲击地压的防治工作提供科学有效的借鉴。

With the development of modern science and technology, the development of microseismic monitoring is rapid in our country. Using microseismic monitoring technology,Setting micro probe in the event of a seismic activities within the mining area,detecting the seismic wave which comes from Micro fracture,determining the location of the seismic waves,you can also give the intensity and frequency of the seismicity,monitoring location through the micro fracture distribution of microseismic,predicting the law of the potential of the mine dynamic disaster,Realizing the early warning by identifying the regular of the mine dynamic disaster activities. In this paper,Study on the mine of Fushun Laohutai 83003 mechanized caving face,combined microseismic monitoring system of Laohutai coal mine analysis Rock burst occurs reason and Distribution of overburden rock damage of 83003 mechanized caving face. By analying microseismic events generated magnitude and energy,Impact on the incidence of rock burst to provide feasibility assessment,Providing scientific and effective reference for the coal of Fushun Laohutai to prevent the work of rock burst in the future.