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从工程实践出发,采用粘弹性两相介质模型,详细研究了地震波在饱水岩层中的传播问题.由于此模型不但考虑了岩层骨架的粘性,而且考虑了地下水对地震波传播的影响,从而可以全面地了解地震波在岩层中的传播特性.该模型比以往研究地震波的模型更具合理性.文中的数值算例对频率、含水量及粘性常数对地震波的波速和衰减的影响进行了细致的分析,并得出了一些重要的结论.
Based on the engineering practice, the viscoelastic two-phase medium model is used to study the propagation of seismic waves in saturated water. Because this model not only considers the viscosity of rock skeleton, but also considers the influence of groundwater on seismic wave propagation, so that the propagation characteristics of seismic wave in rock can be fully understood. The model is more reasonable than previous studies on seismic wave models. Numerical examples are given to analyze the effects of frequency, water content and viscosity constants on the wave velocity and attenuation of seismic waves in detail, and some important conclusions are drawn.