大厂矿区地震与爆破记录波形特征分析

Characteristic Analysis of Seismic and Blasting Waveforms Recorded in Dachang Mining Area

运用小波理论和分形理论方法对大厂矿区典型爆破和显著地震事件波形进行定量处理和特征分析。先用小波理论对爆破和地震波形进行消噪处理,然后再运用分形维对爆破和地震波形进行定量处理和特征分析。结果表明:一般情况下取分维值为1.2可分辨该区的天然地震和爆破或其他干扰波动。

This paper presents quantitative treatment and characteristic analysis on remarkable earthquake events and typical blasting waveforms in Dachang mining area using wavelet theory and fractal theory. Firstly we use wavelet theory to eliminate noise, then we use fractal dimension for quantitative treatment and characteristic analysis of seismic and blasting waveforms. The results show that fractal dimension value of 1.2 could be used to discern natural earthquakes, blasts or other intervention wave movements.