与唐山地震有关的深部岩石力学特性的数值模拟

A NUMERICAL SIMULATION FOR THE MECHANICAL BEHAVIOR OF ROCKS AT GREAT DEPTH RELATED TO THE TANGSHAN EARTHQUAKE

摘要:

根据构造地震的发生机制,本文提出了一个数学模型。该模型不仅能模拟岩石摩擦试验的粘滑特性,而且在该模型基础上建立起来的数值模拟方法能对构造地震的发生作出定性和定量的分析,并经过对唐山地震序列的数值模拟,可得到对震源深部岩石的力学性质的一些认识。

Abstract:

After much discussion of origin mechanism of tectonic earthquakes a mathematical model is advanced in this paper. With this model, not only the stick-slip behavior in rock's tests can be simulated, but the occurrence of tectonic earthquake can be analyzed qualitatively and quantitatively as well. In addition, by the numerical simulation of Tangshan earthquake sequence, a group of mechanical parameters and some qualitative understanding for the deeply buried rocks in seismic area of the Tangshan earthquake are obtained.