摘要
在国内外现行的主要孕震模式的基础上，得出了一个较为合理的详细阐述孕震过程的模式。该模式由（Ⅰ）弹性变形、（Ⅱ）扩容、（Ⅲ）前兆蠕动、（Ⅳ）地震、（Ⅴ）震后调整等阶段组成，主要强调液体（水）存在；发生大小地震的断层均由积累单元和调整单元组成，余震是大震后构造剪切应力重新调整以及主断层未破裂区和位于它两侧尺度小、长度短的断层未破裂区共同破裂的结果。最后，运用断裂力学理论对该模式的孕震过程进行了比较圆满的解释。
On the basis of the main seismogency models being popular now a more reasonable seismogenic mode which expounds the whole seismogenic process in detail is obtained. It is compound of the stages of ( Ⅰ ) elastic deformation, ( Ⅱ )dilatancy, ( Ⅲ )precursory creep ,( Ⅳ )earthquake and ( Ⅴ ) adjustments after earthquake. The mode mainly emphasizes the existence of liquid (water) ,and the seismic faults are all made of stress accumulation unit and stress adjustment unit. The aftershock is the results from the readjustment of tectonic shear stress after the earthquake and the rupture of unfracture regions on the main fault together with smaller and shorter faults in both side of the main fault.Based on fracture mechanics,the seismogenic process under the model is satisfactorily explained.
出处
《地壳形变与地震》
CSCD
1995年第4期8-14,共7页
Crustal Deformation and Earthquake
