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本文从实验室内的岩石声发射实验,研究了 b 值、能量释放和岩石破裂强度的关系,同时也对比研究了我国境内近期发生的强震。发现:(1)同种材料的平均(?)值很接近,甚至对于不同的孕震过程也比较稳定。(2)对于化学成分相同的灰岩,其平均(?)值与岩石破裂强度密切相关。(3)微破裂释放的总蠕变量、蠕变释放速率与岩石破裂强度亦密切相关。(4)脆性相近的介质(如松香、花岗岩等)平均(?)值亦接近。(5)我国近期发生的强震,震前平均(?)值,蠕变释放速率与震级大小相关,震后看不出有多大关系。
In this paper, the relationship between b value, energy release and rock burst strength is studied from the experiment of rock acoustic emission in the laboratory, and the recent strong earthquakes in our country are also compared. It is found that: (1) The average (?) Value of the same species is very close, even for different seismogenic processes. (2) For the limestone with the same chemical composition, the average (?) Value is closely related to the rock burst strength. (3) The total amount of creep released by micro-cracking and the rate of creep release are also closely related to the rupture strength of rock. (4) Average (?) Values of media with similar brittleness (such as rosin, granite, etc.) are also close. (5) The recent strong earthquakes occurred in China, the mean value before earthquake (?), The rate of creep release are related to the magnitude of the earthquake, and we can not see how much it is after the earthquake.