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本文研究了中国大陆131个强震序列的潮汐应力的位相分布特征.关于潮汐最大剪应力所得到的结果是:对单发型地震序列和主发型地震序列,它们的主震位相都有明显的优势分布,而单发型地震序列的主震优势位相比主发型地震序列的主震优势位相高;在群发型地震序列中,可以区分出若干明显的丛集,由每个丛集的主震所组成的序列位相依次呈降低趋势;各种序列晚期强余震的位相也具有明显的优势分布.不同类型地震序列的潮汐最大剪应力的位相和潮汐流体静应力的位相组合特征,具有较明确的物理意义,它与岩石力学实验中的 A 型和 R 型加载的应力途径,其实验结果有一定的对应关系.
In this paper, we study the phase distribution of tidal stress in 131 strong earthquakes in mainland China.The results of the maximum tidal stress on tides show that both the single-type and main-type seismic sequences have significant advantages , While the main shock dominant position of the single-type earthquake sequence is higher than that of the main-type earthquake sequence. In the mass-type earthquake sequence, a number of obvious clusters can be distinguished, and the sequence consisting of the main shocks of each cluster And the phases are in decreasing order of magnitude, and the phases of late strong aftershocks of various sequences also have obvious predominance distributions.The phase combination characteristics of tidal maximum shear stress and tidal hydrostatic stress of different types of seismic sequences have definite physical meaning And rock mechanics experiments A and R-type loading stress pathways, the experimental results have some correspondence.