摘要
煤巷掘进中断层的存在会对其附近的地应力分布、瓦斯赋存以及煤的物理力学性质产生影响。利用电磁辐射监测仪对平煤集团某矿某掘进巷道过逆断层期间进行了跟踪监测,结果表明在揭露上盘煤层之前,电磁辐射强度值逐渐上升至最大值,揭露上盘煤层之后电磁辐射强度值迅速降低,之后稳定在较低水平。由此可知,在揭露上盘煤层之前,突出危险性增大,揭露上盘煤层之后,突出危险性降低。
The distribution of ground stress and gas occurrence and physical properties of coal can be changed by reverse fault in the coal seam.In the period of excavating reverse fault, the 0801 coal roadway of Sihe coal mine was monitored by electromagnetic radiation monitor developed by Professor Wang Enyuan. After the data collected by the monitor was processed and analyzed, the value of electromagnetic radiation（EMR） intensity increased gradually to the maximum before the upper coal seam have been exposed, it decreased rapidly and sustained in lower level after the upper coal seam was exposed. Thus we can draw the conclusion that the danger of outburst increased before the upper coal seam have been exposed, after that it decreased.
出处
《科技视界》
2015年第24期280-281,共2页
Science & Technology Vision
关键词
煤巷
逆断层
电磁辐射
煤与瓦斯突出
预测
Coal roadway
Reverse fault
Electromagnetic radiation
Coal and gas outburst
Prediction
