基于电磁辐射的矿井冲击地压区域监测预报研究

Research on regional monitoring and prediction for rock burst in mine based on electromagnetic radiation

电磁辐射技术作为一种非接触式监测煤岩动力灾害的方法已得到广泛应用。为了提高监测数据的利用率,更加准确的预测冲击地压,从千秋煤矿的地质构造、煤层赋存等方面分析了其发生冲击地压的主要原因,在此基础上研究了基于电磁辐射技术的冲击地压区域监测预报方法。结果表明,区域性电磁辐射不仅能够在较大尺度上反映煤岩体内部应力分布及演化规律,同时能够在一定程度上避免单个测点数据异常的干扰,从而有效地提高了冲击地压监测预报的准确性。研究成果对千秋煤矿及相似条件矿井的冲击地压监测预报工作具有重要的现实意义及应用价值。

As a non-contact method for monitoring coal or rock dynamic disasters,electromagnetic radiation（EMR） has been widely used.For increasing the data utilization ratio and forecasting rock burst more accurately,the main influence factors of rock burst in Qianqiu coal mine were analyzed from the following aspects： geological conditions,coal seam and so on.On this basis the regional monitoring prediction of rock burst in coal mine based on EMR was studied.The results showed that regional EMR could not only reflect the stress field of coal or rock in large scale,but also avoid the disturbance by single measurement point abnormally,thus improving the predictive veracity of monitoring rock burst effectively.It has important practical significance and application value on monitoring and predicting rock burst for Qianqiu coal mine and those with similar conditions.