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本文论述了断层活动引起地震的机制和影响断层活动的因素,利用建立在一能模拟断层岩石的粘弹塑性力学性质的模型的基础上的数值分析方法,着重研究了区域应力场、断层岩石的力学性质及其规模对断层活动的影响。结果表明,区域应力场的主压应力方向对断层的活动影响最为显著。
This paper discusses the mechanism of fault-induced earthquakes and the factors that affect fault activity. By using a numerical analysis method based on a model that can simulate the visco-elastic-plastic mechanical properties of fault rocks, the study focuses on the regional stress fields and fault rocks. The influence of mechanical properties and scale on fault activity. The results show that the direction of the principal compressive stress in the regional stress field has the most significant influence on the fault activity.