从地震模拟看匀阻段与大震的关系

地震地质 ›› 1994, Vol. 16 ›› Issue (2): 109-114.

从地震模拟看匀阻段与大震的关系

洪汉净

国家地震局地质研究所, 北京 100029

收稿日期:1992-08-01 修回日期:1994-02-01 出版日期:1994-06-08 发布日期:2009-11-25
基金资助:
地震科学联合基金资助(90288)

SEISMIC SIMULATION:CORRELATION OF RESISTANCE-HOMOGENEOUS FAULT SEGMENT WITH LARGE EAPTHQUAKES

Hong Hanjing

Institute of Geology, SSB, Beijing 100029

Received:1992-08-01 Revised:1994-02-01 Online:1994-06-08 Published:2009-11-25

摘要/Abstract

摘要：

运用滑块模型建立了一个地震活动的计算机模拟系统。对地震活动计算机模型进行反复试验,认识到断层失稳过程中摩擦强度分布的重要性。把在断层滑动中摩擦阻力分布比较均匀的段称为匀阻段。对大地震而言,断层摩擦阻力的大或小都不是决定因素,而具有较长的匀阻段才是发生大震的首要条件。

关键词: 地震模拟, 断层段, 断层失稳, 摩擦规律, 匀阻段

Abstract:

Acom puter sim ulation system of earthquakes was established with mass-spring model．After a series of testing with various models,distribution of slip resistance in a fault segment wasfound to play an importent part during the fault slip process.Basd on the concept of 'Resistances-Uniformizing',suggested by Wan Shengzhu from rock experiment,the 'Resistanc-homogeneous fault segment' was recommended to describe the fault segment with homogeneous resistance during fault slip．The most important for a large earthquake is not the magnitude of faultstrengh,but the length of a Resistance-homogeneous segment.

Key words: seismic simulation, Fault segment, Fault instability, Frictional law, Resistance-homogeneous

洪汉净. 从地震模拟看匀阻段与大震的关系[J]. 地震地质, 1994, 16(2): 109-114.

Hong Hanjing. SEISMIC SIMULATION:CORRELATION OF RESISTANCE-HOMOGENEOUS FAULT SEGMENT WITH LARGE EAPTHQUAKES[J]. SEISMOLOGY AND GEOLOGY, 1994, 16(2): 109-114.

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