【摘要】 基于黑岱沟露天煤矿地震监测台网和内蒙古地震台网记录的地震、抛掷爆破、松动爆破和车辆振动共190次事件资料，从发震时刻、振幅比、时频特征、P波与S波最大振幅比(Pm/Sm)等方面，开展天然地震和非天然地震事件的识别与分析。结果表明：天然地震事件发生的时间具有很大的随机性，抛掷爆破、松动爆破和车辆振动事件的发震时间有一定的规律性。天然地震和非天然地震的时频空间分布具有相对独立、且界限分明的特征。Pm/Sm是识别矿区事件类型的较有效的判据，Pm/Sm均值方面，抛掷爆破>松动爆破>天然地震。更多还原

【Abstract】 Firstly, we select the data of 190 events including earthquakes, throwing blasts, loosening blasts, and vehicle vibrations recorded by the Hedaigou Open-pit Coal Mine Seismic Monitoring Network and the Inner Mongolia Seismic Network.Then we identify whether these events are natural earthquakes or artificial earthquakes or vibrations by using original time, maximum amplitude ratio of P-wave to S-wave(Pm/Sm),and characteristics of distribution of the occurrence time and occurrence frequency of these 190 events.We find that the original time of natural earthquakes is random, and the throwing blasts, loosening blasts and vehicle-vibration events occur regularly.The distribution of the time and frequency of natural earthquakes and non-natural earthquakes is clearly delimited.Pm/Sm is an effective indicator for identifying the type of the events in Hedaigou mining areas; the Pm/Sm mean value of the throwing blast is larger than the Pm/Sm mean value of the loosening blast, and the Pm/Sm mean value of the loosening blast is larger than the Pm/Sm mean value of the natural earthquake.更多还原