【摘要】 利用地震记录中的衰减信息(波形与频谱)计算岩体的品质因子(Q值),对岩体质量进行准确评价,典型的方法有振幅法、上升时间法、频谱比法、质心频率偏移法。本文介绍了这些方法的原理,并对它们的稳定性、适用情况做出了评价。更多还原

【Abstract】 Based on the attenuation information(waveform and spectrum) in the seismogram,the seismic quality factor Q can be calculated for the rock mass.This paper presents some typical methods to compute the Q value to evaluate the rock mass quality.The methods include amplitude,rise-time, spectral ratio,and centroid frequency shift.The paper gives the principles of these methods,and discusses their stability and applicability.更多还原