| 流体（水）在孕震过程中的作用 |
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| 引用本文： | 林命週,马波,仇志荣,梅安新.流体（水）在孕震过程中的作用[J].地球物理学报,1981,24(2):171-181. |
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| 作者姓名： | 林命週 马波 仇志荣 梅安新 |
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| 作者单位： | 1. 上海地震局;
2. 上海师范大学 |
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| 摘 要： | 本文在DD模式和IPE模式的基础上,提出了流体（水）扩散造成失稳的想法。对孕震过程的四个阶段给出了初步的定量讨论,突出了流体（水）的作用。以波速比前兆为例,求出了孕震时间的计算公式,发现孕震时间和余震区特征长度的平方并不严格成正比,可能含有一个三次因子。在作了适当近似和简化后,本文以实际数字对所求得的公式作了检验,计算结果和经验值吻合较好。
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| 关 键 词： | 孕震过程 流体 平均孔隙压力 孕震时间 波速比异常 震源区 失稳 孕震区 经验数据 扩容阶段 |
| 收稿时间： | 1979-03-16 |
THE EFFECT OF FLUID （WATER） IN THE PREPARING PROCESS OF EARTHQUAKES |
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| LIN MING-ZHOU MA BO QIU ZHI-BONG MEI AN-XIN.THE EFFECT OF FLUID （WATER） IN THE PREPARING PROCESS OF EARTHQUAKES[J].Chinese Journal of Geophysics,1981,24(2):171-181. |
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| Authors: | LIN MING-ZHOU MA BO QIU ZHI-BONG MEI AN-XIN |
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| Institution: | 1. Shanghai Seismological Bureau;
2. Shanghai Normal University |
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| Abstract: | Based on DD model and IPB model, the concept of instability caused by fluid （water） diffusion is presented. For the four stages of the development of earthquakes, the preliminary quantitative discussions are given and the fluid （water） action is emphasized. With the precursor of the velocity ratio as an example, the computational formula of time of the development of earthquakes is derived, and it is found that this time of the development of earthquakes is not strictly proportional to the square of the characteristic length of the aftershock zone, and it may contain a cubic factor. After adequate approximation and simplification, the formula obtained is checked by the actual data and the computational results are in agreement with the empirical values. |
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