从压电效应机制出发,研究岩体在应力波作用下电磁辐射的传播规律。研究结果表明,岩体中电磁辐射随岩体的初始损伤增大而减小,随传播距离发生衰减,在应力波源处信号最强;随压电系数以及岩体的波阻抗增大而增大;随电阻率增大而增大,相对其它4个参数而言,其影响幅值较小。研究结果与现有的室内实验及现场观测结果相吻合。 Based on the piezoelectric effect mechanism, the propagation of electromagnetic radiation under rock stress is studied. The results show that the electromagnetic radiation in the rock mass decreases with the increase of the initial damage of the rock mass and decays with the propagation distance, the signal is the strongest at the stress wave source, increases with the piezoelectric coefficient and the wave impedance of the rock mass ; With the increase of resistivity, the influence amplitude is smaller than the other four parameters. The results are consistent with the existing laboratory experiments and field observations.