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本文用有限变形弹性理论的波动普遍原理和精确理论初步给出地震波波速比异常存在的科学根据,由此进一步说明现行的经典线性弹性理论中波动理论存在着一些不足之处:在某些领域内是可以作为近似理论来应用,在另外一些领域内就根本不适用。最后地震波的理论及震害实例,讨论了无论在距震中的近场或远场垂直地震力的重要作用。
In this paper, the scientific basis for the existence of anomalous wave velocity ratios is preliminarily given by the general theory of wave motion and precision theory of the finite deformation elasticity theory, which further illustrates that there are some deficiencies in the current wave theory of classical linear elasticity theory: in some areas It can be applied as an approximate theory, but it is not applicable in other fields. Finally, the seismic wave theory and examples of seismic damage discuss the important role of the vertical seismic force in the near field or far field from the epicenter.