铜矿微震检测系统设计与实现

Design and Realization of Copper Mine Microseismic Detection System

利用微震(Microseismic,MS)监测是采矿工程灾害控制的有效方法。提出了利用MS技术对铜矿表面阵列微震事件的自动检测,通过构建伪随机特征函数,对地震道的时频系数进行阈值处理,并将结果频谱转换成直方图,以检测与能量到达有关的地震事件。该检测系统通过结合简单的阈值方案,不依赖任何关于噪声水平的先验知识,以及所得到的光谱上的图像处理步骤,能够快速的自适应判断出微震事件,该系统在实际的铜矿微震检测中得到了应用补充。

Microseismic（MS） monitoring is an effective method for mining engineering disaster control.In this paper,we propose the automatic detection of microseismic events in copper surface arrays by using MS technique.By constructing the pseudo-random eigenfunction,the time-frequency coefficients of the seismic traces are thresholded.Result spectrum is converted into a histogram to detect the energy arrival Earthquake events.The detection system can be quickly and adaptively determined in the microseismic event by combining the simple threshold scheme,without relying on any prior knowledge about the noise level and the resulting spectral image processing steps.The system can detect microseismic events in actual copper mine microseismic.The detection has been applied to supplement.