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极震区地震作用的预测与震源区周围岩石半空间中非线性波强度的评估有关。作为弹性波(地震波)辐射源的震源之形式参数对于工程地震学的目标来说是不足够的。本文详细地研究了在震源的非弹性应变区中岩石的特性。根据实际资料和理论的综合分析,确定了直至断裂区的辐射的累积强度量、广义频谱形态和辐射持续的时间,得到了弹塑性波的强度与折合距离的关系式,确定了震源非线性应变区的相对范围。证明了作为弹性波辐射源的震源是一个椭球体,确定了椭球体的尺度及其与平均半径R_0的相关关系,R_0被看作是与震源优势波波长共轭的一个量。证明了极震区地震危险性预测精度的提高与非线性应变的范围和特征确定的准确性有关。为了从强度的能级标准角度预测地震作用,得到了弹性系统的几个动力学系数。
The prediction of the seismic action in the very seismic zone is related to the assessment of the nonlinear wave strength in the rock half-space around the source zone. The formal parameters of the source as a source of elastic wave (seismic) radiation are not sufficient for the purpose of engineering seismology. This paper studies in detail the characteristics of rock in the inelastic strain zone of the source. According to the comprehensive analysis of the actual data and theory, the cumulative intensity of radiation up to the fault zone, the generalized spectral shape and the duration of the radiation are determined, and the relationship between the strength and the equivalent distance of the elastic-plastic wave is obtained. The relative extent of the area. It is proved that the source of the elastic wave radiation source is an ellipsoid, and the scale of the ellipsoid and the correlation with the average radius R_0 are determined. R_0 is regarded as an amount conjugate with the dominant wavelength of the source. It is proved that the improvement of the prediction accuracy of seismic risk in the very earthquake zone is related to the accuracy of determining the range and characteristics of the nonlinear strain. In order to predict the seismic effect from the energy level standard, several dynamical coefficients of the elastic system are obtained.